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Date: 21 Dec 2006 05:29:23
From:
Subject: Unic Twin Diva Pro Problems
We've inherited this machine and a nice grinder. Hooked it up an have
been having great shots for two months till last week. Background:
only the left head works. Push button doser thingy has been replaced
but don't know when. Beginning of problems was a whirring in the
pump(?) Now when the machine is on all you here is a clank and
possible a whirrr. If you press the doser, the clank is heard at the
beginning of the cycle and at the end. The red indicator light
flashes. Any ideas. I do not have a parts manual or an instruction
manual.





 
Date: 22 Dec 2006 10:52:36
From:
Subject: Re: Unic Twin Diva Pro Problems
There is only about 20mm of water in the boiler. So it's not
autofilling.

On Dec 22, 1:29 pm, Danny <d...@nospam.gaggia-espresso.com > wrote:
> s...@lynchcomisso.com wrote:
> > We took another look today at the unit. We removed the tubing to head
> > connection and there is water there. Then we removed the pump and
> > found the connection corroded. We cleaned it up and got it oiled and
> > turning again and reinstalled it. There was no change in the behavior
> > of the machine.Everyone is telling you to make sure that you have water in the
> boiler, and that it autofills to the correct level. This is the first
> thing you should check before proceeding - dry boiler equals expensive
> bang.
>
> --
> Regards, Danny
>
> http://www.gaggia-espresso.com(a purely hobby site)http://www.malabargold.co.uk(UK/EU ordering for Malabar Gold blend)



  
Date: 22 Dec 2006 21:37:22
From: Danny
Subject: Re: Unic Twin Diva Pro Problems
sc@lynchcomisso.com wrote:
> There is only about 20mm of water in the boiler. So it's not
> autofilling.

You need to find out what the correct level is and fix the autofill
before doing anything else, whatsoever. Running the machine with
water potentially not even covering the elements is dangerous and
expensive. You cannot run the machine for more than a few seconds if
the elements are in air before damage will occur. 20mm may or may not
cover the element(s).

I defer to Al for specific advice, since I don't know these machines
at all, I just don't want to see you cause expensive damage chasing
faults before you fix the immediate danger (which sounds like it may
be the cause of at least some of the other symptoms anyway).


--
Regards, Danny

http://www.gaggia-espresso.com (a purely hobby site)
http://www.malabargold.co.uk (UK/EU ordering for Malabar Gold blend)



   
Date: 22 Dec 2006 15:15:26
From: GeeDubb
Subject: Re: Unic Twin Diva Pro Problems

"Danny" <danny@nospam.gaggia-espresso.com > wrote in message
news:4v31elF1ap26oU1@mid.individual.net...
> sc@lynchcomisso.com wrote:
>> There is only about 20mm of water in the boiler. So it's not
>> autofilling.
>
> You need to find out what the correct level is and fix the autofill before
> doing anything else, whatsoever. Running the machine with water
> potentially not even covering the elements is dangerous and expensive.
> You cannot run the machine for more than a few seconds if the elements are
> in air before damage will occur. 20mm may or may not cover the
> element(s).
>
> I defer to Al for specific advice, since I don't know these machines at
> all, I just don't want to see you cause expensive damage chasing faults
> before you fix the immediate danger (which sounds like it may be the cause
> of at least some of the other symptoms anyway).
>
>
> --
> Regards, Danny
>
> http://www.gaggia-espresso.com (a purely hobby site)
> http://www.malabargold.co.uk (UK/EU ordering for Malabar Gold blend)

This machine has a separate switch to engage the heating element so no need
to be concerned....unless that switch is on.
Gary
>



 
Date: 22 Dec 2006 07:00:19
From:
Subject: Re: Unic Twin Diva Pro Problems
We took another look today at the unit. We removed the tubing to head
connection and there is water there. Then we removed the pump and
found the connection corroded. We cleaned it up and got it oiled and
turning again and reinstalled it. There was no change in the behavior
of the machine.

On Dec 21, 11:14 am, s...@lynchcomisso.com wrote:
> We had steam and hot water when the problem first started but now no
> steam or water which means that the boiler is not filling up I guess.
>
> On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
>
> > Okay.
> > There are several things going on here. It would be helpful to have
> > pictures of the front of your machine, but I'm going to try to dig up
> > the manual/parts list today.I sent some pics to your email.
>
> > The red light flashing on the control box indicates that your
> > flowmeter is not reading water passing through it. Another indication
> > the gicleur is clogged. The gicleur is a small orifice that
> > ameliorates water flow to the group. It is located behind and to the
> > right of the group,on the brass group body, mounted with a 22mm nut
> > and filter screen.
> > The clank and whirr sounds like the group solenoid valve chattering
> > during opening and closing, which it will often do when there is no
> > water to lubricate it.
> > Where is the pump guage reading in between the clanks?It reads 5 and jumps to 7 when clanking and then moves back down to 5.
>
> > Does your hot water wand work, and does it activate refill?We had steam and hot water when the problem first started but now no
> steam or hot water which means that the boiler is not filling up I
> guess. If I turn on the boiler steam comes out of a small hole to the
> left of the boiler in my picture so I keep the boiler off for now.
>
> > If you want to do the work yourself, there are several here who will
> > help you with direction and parts....alI know we can fix it and am comfortable doing the work.
>
>
>
> > On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>
> > >Let me clarify, only the left head used to work up to a couple of days
> > >ago. The right group has not worked for some time from what I
> > >understand. The prior owner replaced the left group with a "Torino"
> > >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>
> > >On the right side the EFT has a red light at the water symbol and a
> > >green light at the power symbol. Nothing happens when you press the
> > >control box. When we hooked the machine up, there was no light on the
> > >Electronic Filling Timer and the fuse had been removed or fallen out.
>
> > >On the left side, the EFT has no light at the water and a green light
> > >at the power symbol. When you select a dose on the control box, you
> > >get a clank and maybe a whirr at the beginning and end of the cycle and
> > >the red light at the water flashes.
>
> > >Overall, when you turn the machine on, you get a clank after a few
> > >seconds. The boiler does not appear to be filling up and the green
> > >needle does not enter the white area but jumps into it during the
> > >clanking. I do not hear the pump.
>
> > >Two weeks ago we began to hear whirring along with pumping during use
> > >like when you attach a playing card to your bike frame that hits the
> > >spokes ; ) .
>
> > >We tried switching the the EFT's and it did not help.



  
Date: 22 Dec 2006 15:26:58
From: GeeDubb
Subject: Re: Unic Twin Diva Pro Problems
Inn the trouble shooting section of the manual, if pump, unit solenoid valve
and water intake solenoid valve don't work (which is what you're describing)
it indicates to check the fuses (back of both control boxes) even if the
indicator lights are still functioning properly

Is the pump/motor turning? If so then it's possibly a bad solenoid valve.

Ping Ted Simpson and ask him for the manual (he has it in pdf).

Gary

<sc@lynchcomisso.com > wrote in message
news:1166799619.323767.47780@i12g2000cwa.googlegroups.com...
> We took another look today at the unit. We removed the tubing to head
> connection and there is water there. Then we removed the pump and
> found the connection corroded. We cleaned it up and got it oiled and
> turning again and reinstalled it. There was no change in the behavior
> of the machine.
>
> On Dec 21, 11:14 am, s...@lynchcomisso.com wrote:
>> We had steam and hot water when the problem first started but now no
>> steam or water which means that the boiler is not filling up I guess.
>>
>> On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
>>
>> > Okay.
>> > There are several things going on here. It would be helpful to have
>> > pictures of the front of your machine, but I'm going to try to dig up
>> > the manual/parts list today.I sent some pics to your email.
>>
>> > The red light flashing on the control box indicates that your
>> > flowmeter is not reading water passing through it. Another indication
>> > the gicleur is clogged. The gicleur is a small orifice that
>> > ameliorates water flow to the group. It is located behind and to the
>> > right of the group,on the brass group body, mounted with a 22mm nut
>> > and filter screen.
>> > The clank and whirr sounds like the group solenoid valve chattering
>> > during opening and closing, which it will often do when there is no
>> > water to lubricate it.
>> > Where is the pump guage reading in between the clanks?It reads 5 and
>> > jumps to 7 when clanking and then moves back down to 5.
>>
>> > Does your hot water wand work, and does it activate refill?We had steam
>> > and hot water when the problem first started but now no
>> steam or hot water which means that the boiler is not filling up I
>> guess. If I turn on the boiler steam comes out of a small hole to the
>> left of the boiler in my picture so I keep the boiler off for now.
>>
>> > If you want to do the work yourself, there are several here who will
>> > help you with direction and parts....alI know we can fix it and am
>> > comfortable doing the work.
>>
>>
>>
>> > On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>>
>> > >Let me clarify, only the left head used to work up to a couple of days
>> > >ago. The right group has not worked for some time from what I
>> > >understand. The prior owner replaced the left group with a "Torino"
>> > >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>>
>> > >On the right side the EFT has a red light at the water symbol and a
>> > >green light at the power symbol. Nothing happens when you press the
>> > >control box. When we hooked the machine up, there was no light on the
>> > >Electronic Filling Timer and the fuse had been removed or fallen out.
>>
>> > >On the left side, the EFT has no light at the water and a green light
>> > >at the power symbol. When you select a dose on the control box, you
>> > >get a clank and maybe a whirr at the beginning and end of the cycle
>> > >and
>> > >the red light at the water flashes.
>>
>> > >Overall, when you turn the machine on, you get a clank after a few
>> > >seconds. The boiler does not appear to be filling up and the green
>> > >needle does not enter the white area but jumps into it during the
>> > >clanking. I do not hear the pump.
>>
>> > >Two weeks ago we began to hear whirring along with pumping during use
>> > >like when you attach a playing card to your bike frame that hits the
>> > >spokes ; ) .
>>
>> > >We tried switching the the EFT's and it did not help.
>



   
Date: 22 Dec 2006 19:16:20
From: sprsso
Subject: Re: Unic Twin Diva Pro Problems
Gary and Danny,
Spoke with these guys by phone this afternoon and they have it under
control. They have a tech coming tomorrow, but by all indications, the
control boxes are not working properly. I was impressed by their
willingness and ability to tear the machine down with only phone
directions. Couple more tinkerers on our hands....al

On Fri, 22 Dec 2006 15:26:58 -0700, "GeeDubb" <geedubb@qwest.net >
wrote:

>Inn the trouble shooting section of the manual, if pump, unit solenoid valve
>and water intake solenoid valve don't work (which is what you're describing)
>it indicates to check the fuses (back of both control boxes) even if the
>indicator lights are still functioning properly
>
>Is the pump/motor turning? If so then it's possibly a bad solenoid valve.
>
>Ping Ted Simpson and ask him for the manual (he has it in pdf).
>
>Gary
>
><sc@lynchcomisso.com> wrote in message
>news:1166799619.323767.47780@i12g2000cwa.googlegroups.com...
>> We took another look today at the unit. We removed the tubing to head
>> connection and there is water there. Then we removed the pump and
>> found the connection corroded. We cleaned it up and got it oiled and
>> turning again and reinstalled it. There was no change in the behavior
>> of the machine.
>>
>> On Dec 21, 11:14 am, s...@lynchcomisso.com wrote:
>>> We had steam and hot water when the problem first started but now no
>>> steam or water which means that the boiler is not filling up I guess.
>>>
>>> On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
>>>
>>> > Okay.
>>> > There are several things going on here. It would be helpful to have
>>> > pictures of the front of your machine, but I'm going to try to dig up
>>> > the manual/parts list today.I sent some pics to your email.
>>>
>>> > The red light flashing on the control box indicates that your
>>> > flowmeter is not reading water passing through it. Another indication
>>> > the gicleur is clogged. The gicleur is a small orifice that
>>> > ameliorates water flow to the group. It is located behind and to the
>>> > right of the group,on the brass group body, mounted with a 22mm nut
>>> > and filter screen.
>>> > The clank and whirr sounds like the group solenoid valve chattering
>>> > during opening and closing, which it will often do when there is no
>>> > water to lubricate it.
>>> > Where is the pump guage reading in between the clanks?It reads 5 and
>>> > jumps to 7 when clanking and then moves back down to 5.
>>>
>>> > Does your hot water wand work, and does it activate refill?We had steam
>>> > and hot water when the problem first started but now no
>>> steam or hot water which means that the boiler is not filling up I
>>> guess. If I turn on the boiler steam comes out of a small hole to the
>>> left of the boiler in my picture so I keep the boiler off for now.
>>>
>>> > If you want to do the work yourself, there are several here who will
>>> > help you with direction and parts....alI know we can fix it and am
>>> > comfortable doing the work.
>>>
>>>
>>>
>>> > On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>>>
>>> > >Let me clarify, only the left head used to work up to a couple of days
>>> > >ago. The right group has not worked for some time from what I
>>> > >understand. The prior owner replaced the left group with a "Torino"
>>> > >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>>>
>>> > >On the right side the EFT has a red light at the water symbol and a
>>> > >green light at the power symbol. Nothing happens when you press the
>>> > >control box. When we hooked the machine up, there was no light on the
>>> > >Electronic Filling Timer and the fuse had been removed or fallen out.
>>>
>>> > >On the left side, the EFT has no light at the water and a green light
>>> > >at the power symbol. When you select a dose on the control box, you
>>> > >get a clank and maybe a whirr at the beginning and end of the cycle
>>> > >and
>>> > >the red light at the water flashes.
>>>
>>> > >Overall, when you turn the machine on, you get a clank after a few
>>> > >seconds. The boiler does not appear to be filling up and the green
>>> > >needle does not enter the white area but jumps into it during the
>>> > >clanking. I do not hear the pump.
>>>
>>> > >Two weeks ago we began to hear whirring along with pumping during use
>>> > >like when you attach a playing card to your bike frame that hits the
>>> > >spokes ; ) .
>>>
>>> > >We tried switching the the EFT's and it did not help.
>>



    
Date: 23 Dec 2006 10:44:19
From: Danny
Subject: Re: Unic Twin Diva Pro Problems
sprsso wrote:
> Gary and Danny,
> Spoke with these guys by phone this afternoon and they have it under
> control. They have a tech coming tomorrow, but by all indications, the
> control boxes are not working properly. I was impressed by their
> willingness and ability to tear the machine down with only phone
> directions. Couple more tinkerers on our hands....al

Great! They'll certainly learn about their machines, especially with
you as teacher :)


--
Regards, Danny

http://www.gaggia-espresso.com (a purely hobby site)
http://www.malabargold.co.uk (UK/EU ordering for Malabar Gold blend)



    
Date: 22 Dec 2006 20:40:12
From: GeeDubb
Subject: Re: Unic Twin Diva Pro Problems
I love this group of people. So many willing to help out.

Thanks, Al

Gary

"sprsso" <acritzer@cfl.rr.com > wrote in message
news:05too2hphl1ki414676085buv9ojoapt1c@4ax.com...
> Gary and Danny,
> Spoke with these guys by phone this afternoon and they have it under
> control. They have a tech coming tomorrow, but by all indications, the
> control boxes are not working properly. I was impressed by their
> willingness and ability to tear the machine down with only phone
> directions. Couple more tinkerers on our hands....al
>
> On Fri, 22 Dec 2006 15:26:58 -0700, "GeeDubb" <geedubb@qwest.net>
> wrote:
>
>>Inn the trouble shooting section of the manual, if pump, unit solenoid
>>valve
>>and water intake solenoid valve don't work (which is what you're
>>describing)
>>it indicates to check the fuses (back of both control boxes) even if the
>>indicator lights are still functioning properly
>>
>>Is the pump/motor turning? If so then it's possibly a bad solenoid valve.
>>
>>Ping Ted Simpson and ask him for the manual (he has it in pdf).
>>
>>Gary
>>
>><sc@lynchcomisso.com> wrote in message
>>news:1166799619.323767.47780@i12g2000cwa.googlegroups.com...
>>> We took another look today at the unit. We removed the tubing to head
>>> connection and there is water there. Then we removed the pump and
>>> found the connection corroded. We cleaned it up and got it oiled and
>>> turning again and reinstalled it. There was no change in the behavior
>>> of the machine.
>>>
>>> On Dec 21, 11:14 am, s...@lynchcomisso.com wrote:
>>>> We had steam and hot water when the problem first started but now no
>>>> steam or water which means that the boiler is not filling up I guess.
>>>>
>>>> On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
>>>>
>>>> > Okay.
>>>> > There are several things going on here. It would be helpful to have
>>>> > pictures of the front of your machine, but I'm going to try to dig up
>>>> > the manual/parts list today.I sent some pics to your email.
>>>>
>>>> > The red light flashing on the control box indicates that your
>>>> > flowmeter is not reading water passing through it. Another indication
>>>> > the gicleur is clogged. The gicleur is a small orifice that
>>>> > ameliorates water flow to the group. It is located behind and to the
>>>> > right of the group,on the brass group body, mounted with a 22mm nut
>>>> > and filter screen.
>>>> > The clank and whirr sounds like the group solenoid valve chattering
>>>> > during opening and closing, which it will often do when there is no
>>>> > water to lubricate it.
>>>> > Where is the pump guage reading in between the clanks?It reads 5 and
>>>> > jumps to 7 when clanking and then moves back down to 5.
>>>>
>>>> > Does your hot water wand work, and does it activate refill?We had
>>>> > steam
>>>> > and hot water when the problem first started but now no
>>>> steam or hot water which means that the boiler is not filling up I
>>>> guess. If I turn on the boiler steam comes out of a small hole to the
>>>> left of the boiler in my picture so I keep the boiler off for now.
>>>>
>>>> > If you want to do the work yourself, there are several here who will
>>>> > help you with direction and parts....alI know we can fix it and am
>>>> > comfortable doing the work.
>>>>
>>>>
>>>>
>>>> > On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>>>>
>>>> > >Let me clarify, only the left head used to work up to a couple of
>>>> > >days
>>>> > >ago. The right group has not worked for some time from what I
>>>> > >understand. The prior owner replaced the left group with a "Torino"
>>>> > >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>>>>
>>>> > >On the right side the EFT has a red light at the water symbol and a
>>>> > >green light at the power symbol. Nothing happens when you press the
>>>> > >control box. When we hooked the machine up, there was no light on
>>>> > >the
>>>> > >Electronic Filling Timer and the fuse had been removed or fallen
>>>> > >out.
>>>>
>>>> > >On the left side, the EFT has no light at the water and a green
>>>> > >light
>>>> > >at the power symbol. When you select a dose on the control box, you
>>>> > >get a clank and maybe a whirr at the beginning and end of the cycle
>>>> > >and
>>>> > >the red light at the water flashes.
>>>>
>>>> > >Overall, when you turn the machine on, you get a clank after a few
>>>> > >seconds. The boiler does not appear to be filling up and the green
>>>> > >needle does not enter the white area but jumps into it during the
>>>> > >clanking. I do not hear the pump.
>>>>
>>>> > >Two weeks ago we began to hear whirring along with pumping during
>>>> > >use
>>>> > >like when you attach a playing card to your bike frame that hits the
>>>> > >spokes ; ) .
>>>>
>>>> > >We tried switching the the EFT's and it did not help.
>>>
>



  
Date: 22 Dec 2006 18:29:11
From: Danny
Subject: Re: Unic Twin Diva Pro Problems
sc@lynchcomisso.com wrote:
> We took another look today at the unit. We removed the tubing to head
> connection and there is water there. Then we removed the pump and
> found the connection corroded. We cleaned it up and got it oiled and
> turning again and reinstalled it. There was no change in the behavior
> of the machine.

Everyone is telling you to make sure that you have water in the
boiler, and that it autofills to the correct level. This is the first
thing you should check before proceeding - dry boiler equals expensive
bang.


--
Regards, Danny

http://www.gaggia-espresso.com (a purely hobby site)
http://www.malabargold.co.uk (UK/EU ordering for Malabar Gold blend)



 
Date: 21 Dec 2006 14:36:58
From:
Subject: Re: Unic Twin Diva Pro Problems
Can't find the pics on a.b.c but am assuming it's big brass 3-way valve
thing. It has a tapered lock nut with flat head screw in middle. I
did as you said and no change.

On Dec 21, 12:45 pm, "GeeDubb" <geed...@qwest.net > wrote:
> I'm by no means a machine mechanic, so I'll difer to Al's judgement and
> years of experience but in my experience with my Unic this could be a
> possible problem.
> I just posted two photos on alt.binaries.coffee of the flow valve (taken
> from top looking down). This valve is next to a solenoid in the back left
> corner of the machine. This solenoid has a red light (indicating power) so
> check to see if this is lit. If not then there is a power supply issue to
> the solenoid (don't have any recommendations). If lit, then take a wrench
> and loosen the lock nut on the valve in the picture and turn the screw ccw a
> turn or two. This may free up any flow problems. It's simple thing to
> check. If this doesn't work then listen to Al.
>
> Gary
>
> <s...@lynchcomisso.com> wrote in messagenews:1166721085.640919.85480@42g2000cwt.googlegroups.com...
>
> > Water is on and flowing.
>
> > On Dec 21, 11:59 am, "GeeDubb" <geed...@qwest.net> wrote:
> >> <s...@lynchcomisso.com> wrote in
> >> messagenews:1166717677.467426.133970@42g2000cwt.googlegroups.com...
>
> >> > We had steam and hot water when the problem first started but now no
> >> > steam or water which means that the boiler is not filling up I
> >> > guess.Dumb question but....have you checked your water supply to make
> >> > sure it's
> >> flowing to the machine?
> >> Make sure the heating element is off so you don't fry the element.
> >> (probably
> >> done but doesn't hurt to remind)
>
> >> Gary (sometimes it's the little things)
>
> >> > On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
> >> >> Okay.
> >> >> There are several things going on here. It would be helpful to have
> >> >> pictures of the front of your machine, but I'm going to try to dig up
> >> >> the manual/parts list today.
>
> >> > I sent some pics to your email.
>
> >> >> The red light flashing on the control box indicates that your
> >> >> flowmeter is not reading water passing through it. Another indication
> >> >> the gicleur is clogged. The gicleur is a small orifice that
> >> >> ameliorates water flow to the group. It is located behind and to the
> >> >> right of the group,on the brass group body, mounted with a 22mm nut
> >> >> and filter screen.
> >> >> The clank and whirr sounds like the group solenoid valve chattering
> >> >> during opening and closing, which it will often do when there is no
> >> >> water to lubricate it.
> >> >> Where is the pump guage reading in between the clanks?
>
> >> > It reads 5 and jumps to 7 when clanking and then moves back down to 5.
>
> >> >> Does your hot water wand work, and does it activate refill?
>
> >> > We had steam and hot water when the problem first started but now no
> >> > steam or hot water which means that the boiler is not filling up I
> >> > guess. If I turn on the boiler steam comes out of a small hole to the
> >> > left of the boiler in my picture so I keep the boiler off for now.
>
> >> >> If you want to do the work yourself, there are several here who will
> >> >> help you with direction and parts....al
>
> >> > I know we can fix it and am comfortable doing the work.
>
> >> >> On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>
> >> >> >Let me clarify, only the left head used to work up to a couple of
> >> >> >days
> >> >> >ago. The right group has not worked for some time from what I
> >> >> >understand. The prior owner replaced the left group with a "Torino"
> >> >> >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>
> >> >> >On the right side the EFT has a red light at the water symbol and a
> >> >> >green light at the power symbol. Nothing happens when you press the
> >> >> >control box. When we hooked the machine up, there was no light on
> >> >> >the
> >> >> >Electronic Filling Timer and the fuse had been removed or fallen out.
>
> >> >> >On the left side, the EFT has no light at the water and a green light
> >> >> >at the power symbol. When you select a dose on the control box, you
> >> >> >get a clank and maybe a whirr at the beginning and end of the cycle
> >> >> >and
> >> >> >the red light at the water flashes.
>
> >> >> >Overall, when you turn the machine on, you get a clank after a few
> >> >> >seconds. The boiler does not appear to be filling up and the green
> >> >> >needle does not enter the white area but jumps into it during the
> >> >> >clanking. I do not hear the pump.
>
> >> >> >Two weeks ago we began to hear whirring along with pumping during use
> >> >> >like when you attach a playing card to your bike frame that hits the
> >> >> >spokes ; ) .
>
> >> >> >We tried switching the the EFT's and it did not help.



 
Date: 21 Dec 2006 09:56:07
From:
Subject: Re: Unic Twin Diva Pro Problems
During the clank noise the CN-698 UNIC Flowmeters on both sides blink
red twice.



  
Date: 21 Dec 2006 15:22:07
From: sprsso
Subject: Re: Unic Twin Diva Pro Problems
Thanks for the pictures. It will be easier to diagnose(and cheaper)
with separate liquid level and dosing control boxes.
Try what Gary recommended.Easy enough.
The good news is that you are seeing some blinking from the
flowmeters, although it's only a couple. It means they are working,
but essentially there is no flow through them. I suspect the blockage
will be upstream of these meters.
More good news is that I found the manual, with parts breakdown,
hydraulic and electrical schematics, and parts legend.
The bad news is that there is no thermal overload switch on the
element, as I recall.
I see from the pictures that the level control boxes have been
replaced and most likely the power and heating switches as well.
I would first concern myself with any refill problems, the health of
the element next, and then your dispensing problems.
I can help with step-by-step diagnostics, but it could take a while.
We could do this by email, here, or more quickly by phone. Let me
know....al


On 21 Dec 2006 09:56:07 -0800, sc@lynchcomisso.com wrote:

>During the clank noise the CN-698 UNIC Flowmeters on both sides blink
>red twice.



   
Date: 21 Dec 2006 15:30:28
From: sprsso
Subject: Re: Unic Twin Diva Pro Problems
Damn, I meant to write downstream....al
>but essentially there is no flow through them. I suspect the blockage
>will be upstream of these meters.

>
>
>On 21 Dec 2006 09:56:07 -0800, sc@lynchcomisso.com wrote:
>
>>During the clank noise the CN-698 UNIC Flowmeters on both sides blink
>>red twice.



 
Date: 21 Dec 2006 09:11:25
From:
Subject: Re: Unic Twin Diva Pro Problems
Water is on and flowing.

On Dec 21, 11:59 am, "GeeDubb" <geed...@qwest.net > wrote:
> <s...@lynchcomisso.com> wrote in messagenews:1166717677.467426.133970@42g2000cwt.googlegroups.com...
>
>
>
> > We had steam and hot water when the problem first started but now no
> > steam or water which means that the boiler is not filling up I guess.Dumb question but....have you checked your water supply to make sure it's
> flowing to the machine?
> Make sure the heating element is off so you don't fry the element. (probably
> done but doesn't hurt to remind)
>
> Gary (sometimes it's the little things)
>
>
>
> > On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
> >> Okay.
> >> There are several things going on here. It would be helpful to have
> >> pictures of the front of your machine, but I'm going to try to dig up
> >> the manual/parts list today.
>
> > I sent some pics to your email.
>
> >> The red light flashing on the control box indicates that your
> >> flowmeter is not reading water passing through it. Another indication
> >> the gicleur is clogged. The gicleur is a small orifice that
> >> ameliorates water flow to the group. It is located behind and to the
> >> right of the group,on the brass group body, mounted with a 22mm nut
> >> and filter screen.
> >> The clank and whirr sounds like the group solenoid valve chattering
> >> during opening and closing, which it will often do when there is no
> >> water to lubricate it.
> >> Where is the pump guage reading in between the clanks?
>
> > It reads 5 and jumps to 7 when clanking and then moves back down to 5.
>
> >> Does your hot water wand work, and does it activate refill?
>
> > We had steam and hot water when the problem first started but now no
> > steam or hot water which means that the boiler is not filling up I
> > guess. If I turn on the boiler steam comes out of a small hole to the
> > left of the boiler in my picture so I keep the boiler off for now.
>
> >> If you want to do the work yourself, there are several here who will
> >> help you with direction and parts....al
>
> > I know we can fix it and am comfortable doing the work.
>
> >> On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>
> >> >Let me clarify, only the left head used to work up to a couple of days
> >> >ago. The right group has not worked for some time from what I
> >> >understand. The prior owner replaced the left group with a "Torino"
> >> >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>
> >> >On the right side the EFT has a red light at the water symbol and a
> >> >green light at the power symbol. Nothing happens when you press the
> >> >control box. When we hooked the machine up, there was no light on the
> >> >Electronic Filling Timer and the fuse had been removed or fallen out.
>
> >> >On the left side, the EFT has no light at the water and a green light
> >> >at the power symbol. When you select a dose on the control box, you
> >> >get a clank and maybe a whirr at the beginning and end of the cycle and
> >> >the red light at the water flashes.
>
> >> >Overall, when you turn the machine on, you get a clank after a few
> >> >seconds. The boiler does not appear to be filling up and the green
> >> >needle does not enter the white area but jumps into it during the
> >> >clanking. I do not hear the pump.
>
> >> >Two weeks ago we began to hear whirring along with pumping during use
> >> >like when you attach a playing card to your bike frame that hits the
> >> >spokes ; ) .
>
> >> >We tried switching the the EFT's and it did not help.



  
Date: 21 Dec 2006 10:45:25
From: GeeDubb
Subject: Re: Unic Twin Diva Pro Problems
I'm by no means a machine mechanic, so I'll difer to Al's judgement and
years of experience but in my experience with my Unic this could be a
possible problem.
I just posted two photos on alt.binaries.coffee of the flow valve (taken
from top looking down). This valve is next to a solenoid in the back left
corner of the machine. This solenoid has a red light (indicating power) so
check to see if this is lit. If not then there is a power supply issue to
the solenoid (don't have any recommendations). If lit, then take a wrench
and loosen the lock nut on the valve in the picture and turn the screw ccw a
turn or two. This may free up any flow problems. It's simple thing to
check. If this doesn't work then listen to Al.

Gary

<sc@lynchcomisso.com > wrote in message
news:1166721085.640919.85480@42g2000cwt.googlegroups.com...
> Water is on and flowing.
>
> On Dec 21, 11:59 am, "GeeDubb" <geed...@qwest.net> wrote:
>> <s...@lynchcomisso.com> wrote in
>> messagenews:1166717677.467426.133970@42g2000cwt.googlegroups.com...
>>
>>
>>
>> > We had steam and hot water when the problem first started but now no
>> > steam or water which means that the boiler is not filling up I
>> > guess.Dumb question but....have you checked your water supply to make
>> > sure it's
>> flowing to the machine?
>> Make sure the heating element is off so you don't fry the element.
>> (probably
>> done but doesn't hurt to remind)
>>
>> Gary (sometimes it's the little things)
>>
>>
>>
>> > On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
>> >> Okay.
>> >> There are several things going on here. It would be helpful to have
>> >> pictures of the front of your machine, but I'm going to try to dig up
>> >> the manual/parts list today.
>>
>> > I sent some pics to your email.
>>
>> >> The red light flashing on the control box indicates that your
>> >> flowmeter is not reading water passing through it. Another indication
>> >> the gicleur is clogged. The gicleur is a small orifice that
>> >> ameliorates water flow to the group. It is located behind and to the
>> >> right of the group,on the brass group body, mounted with a 22mm nut
>> >> and filter screen.
>> >> The clank and whirr sounds like the group solenoid valve chattering
>> >> during opening and closing, which it will often do when there is no
>> >> water to lubricate it.
>> >> Where is the pump guage reading in between the clanks?
>>
>> > It reads 5 and jumps to 7 when clanking and then moves back down to 5.
>>
>> >> Does your hot water wand work, and does it activate refill?
>>
>> > We had steam and hot water when the problem first started but now no
>> > steam or hot water which means that the boiler is not filling up I
>> > guess. If I turn on the boiler steam comes out of a small hole to the
>> > left of the boiler in my picture so I keep the boiler off for now.
>>
>> >> If you want to do the work yourself, there are several here who will
>> >> help you with direction and parts....al
>>
>> > I know we can fix it and am comfortable doing the work.
>>
>> >> On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>>
>> >> >Let me clarify, only the left head used to work up to a couple of
>> >> >days
>> >> >ago. The right group has not worked for some time from what I
>> >> >understand. The prior owner replaced the left group with a "Torino"
>> >> >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>>
>> >> >On the right side the EFT has a red light at the water symbol and a
>> >> >green light at the power symbol. Nothing happens when you press the
>> >> >control box. When we hooked the machine up, there was no light on
>> >> >the
>> >> >Electronic Filling Timer and the fuse had been removed or fallen out.
>>
>> >> >On the left side, the EFT has no light at the water and a green light
>> >> >at the power symbol. When you select a dose on the control box, you
>> >> >get a clank and maybe a whirr at the beginning and end of the cycle
>> >> >and
>> >> >the red light at the water flashes.
>>
>> >> >Overall, when you turn the machine on, you get a clank after a few
>> >> >seconds. The boiler does not appear to be filling up and the green
>> >> >needle does not enter the white area but jumps into it during the
>> >> >clanking. I do not hear the pump.
>>
>> >> >Two weeks ago we began to hear whirring along with pumping during use
>> >> >like when you attach a playing card to your bike frame that hits the
>> >> >spokes ; ) .
>>
>> >> >We tried switching the the EFT's and it did not help.
>



 
Date: 21 Dec 2006 08:14:37
From:
Subject: Re: Unic Twin Diva Pro Problems

We had steam and hot water when the problem first started but now no
steam or water which means that the boiler is not filling up I guess.

On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com > wrote:
> Okay.
> There are several things going on here. It would be helpful to have
> pictures of the front of your machine, but I'm going to try to dig up
> the manual/parts list today.


I sent some pics to your email.


> The red light flashing on the control box indicates that your
> flowmeter is not reading water passing through it. Another indication
> the gicleur is clogged. The gicleur is a small orifice that
> ameliorates water flow to the group. It is located behind and to the
> right of the group,on the brass group body, mounted with a 22mm nut
> and filter screen.
> The clank and whirr sounds like the group solenoid valve chattering
> during opening and closing, which it will often do when there is no
> water to lubricate it.
> Where is the pump guage reading in between the clanks?

It reads 5 and jumps to 7 when clanking and then moves back down to 5.

> Does your hot water wand work, and does it activate refill?

We had steam and hot water when the problem first started but now no
steam or hot water which means that the boiler is not filling up I
guess. If I turn on the boiler steam comes out of a small hole to the
left of the boiler in my picture so I keep the boiler off for now.


> If you want to do the work yourself, there are several here who will
> help you with direction and parts....al

I know we can fix it and am comfortable doing the work.



>
> On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>
> >Let me clarify, only the left head used to work up to a couple of days
> >ago. The right group has not worked for some time from what I
> >understand. The prior owner replaced the left group with a "Torino"
> >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>
> >On the right side the EFT has a red light at the water symbol and a
> >green light at the power symbol. Nothing happens when you press the
> >control box. When we hooked the machine up, there was no light on the
> >Electronic Filling Timer and the fuse had been removed or fallen out.
>
> >On the left side, the EFT has no light at the water and a green light
> >at the power symbol. When you select a dose on the control box, you
> >get a clank and maybe a whirr at the beginning and end of the cycle and
> >the red light at the water flashes.
>
> >Overall, when you turn the machine on, you get a clank after a few
> >seconds. The boiler does not appear to be filling up and the green
> >needle does not enter the white area but jumps into it during the
> >clanking. I do not hear the pump.
>
> >Two weeks ago we began to hear whirring along with pumping during use
> >like when you attach a playing card to your bike frame that hits the
> >spokes ; ) .
>
> >We tried switching the the EFT's and it did not help.



  
Date: 21 Dec 2006 09:59:38
From: GeeDubb
Subject: Re: Unic Twin Diva Pro Problems

<sc@lynchcomisso.com > wrote in message
news:1166717677.467426.133970@42g2000cwt.googlegroups.com...
>
> We had steam and hot water when the problem first started but now no
> steam or water which means that the boiler is not filling up I guess.

Dumb question but....have you checked your water supply to make sure it's
flowing to the machine?
Make sure the heating element is off so you don't fry the element. (probably
done but doesn't hurt to remind)

Gary (sometimes it's the little things)


>
> On Dec 21, 10:37 am, sprsso <acrit...@cfl.rr.com> wrote:
>> Okay.
>> There are several things going on here. It would be helpful to have
>> pictures of the front of your machine, but I'm going to try to dig up
>> the manual/parts list today.
>
>
> I sent some pics to your email.
>
>
>> The red light flashing on the control box indicates that your
>> flowmeter is not reading water passing through it. Another indication
>> the gicleur is clogged. The gicleur is a small orifice that
>> ameliorates water flow to the group. It is located behind and to the
>> right of the group,on the brass group body, mounted with a 22mm nut
>> and filter screen.
>> The clank and whirr sounds like the group solenoid valve chattering
>> during opening and closing, which it will often do when there is no
>> water to lubricate it.
>> Where is the pump guage reading in between the clanks?
>
> It reads 5 and jumps to 7 when clanking and then moves back down to 5.
>
>> Does your hot water wand work, and does it activate refill?
>
> We had steam and hot water when the problem first started but now no
> steam or hot water which means that the boiler is not filling up I
> guess. If I turn on the boiler steam comes out of a small hole to the
> left of the boiler in my picture so I keep the boiler off for now.
>
>
>> If you want to do the work yourself, there are several here who will
>> help you with direction and parts....al
>
> I know we can fix it and am comfortable doing the work.
>
>
>
>>
>> On 21 Dec 2006 06:39:59 -0800, s...@lynchcomisso.com wrote:
>>
>> >Let me clarify, only the left head used to work up to a couple of days
>> >ago. The right group has not worked for some time from what I
>> >understand. The prior owner replaced the left group with a "Torino"
>> >branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>>
>> >On the right side the EFT has a red light at the water symbol and a
>> >green light at the power symbol. Nothing happens when you press the
>> >control box. When we hooked the machine up, there was no light on the
>> >Electronic Filling Timer and the fuse had been removed or fallen out.
>>
>> >On the left side, the EFT has no light at the water and a green light
>> >at the power symbol. When you select a dose on the control box, you
>> >get a clank and maybe a whirr at the beginning and end of the cycle and
>> >the red light at the water flashes.
>>
>> >Overall, when you turn the machine on, you get a clank after a few
>> >seconds. The boiler does not appear to be filling up and the green
>> >needle does not enter the white area but jumps into it during the
>> >clanking. I do not hear the pump.
>>
>> >Two weeks ago we began to hear whirring along with pumping during use
>> >like when you attach a playing card to your bike frame that hits the
>> >spokes ; ) .
>>
>> >We tried switching the the EFT's and it did not help.
>



 
Date: 21 Dec 2006 06:46:27
From:
Subject: Re: Unic Twin Diva Pro Problems
What is the gicleur?



 
Date: 21 Dec 2006 06:39:59
From:
Subject: Re: Unic Twin Diva Pro Problems
Let me clarify, only the left head used to work up to a couple of days
ago. The right group has not worked for some time from what I
understand. The prior owner replaced the left group with a "Torino"
branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).

On the right side the EFT has a red light at the water symbol and a
green light at the power symbol. Nothing happens when you press the
control box. When we hooked the machine up, there was no light on the
Electronic Filling Timer and the fuse had been removed or fallen out.

On the left side, the EFT has no light at the water and a green light
at the power symbol. When you select a dose on the control box, you
get a clank and maybe a whirr at the beginning and end of the cycle and
the red light at the water flashes.

Overall, when you turn the machine on, you get a clank after a few
seconds. The boiler does not appear to be filling up and the green
needle does not enter the white area but jumps into it during the
clanking. I do not hear the pump.

Two weeks ago we began to hear whirring along with pumping during use
like when you attach a playing card to your bike frame that hits the
spokes ; ) .

We tried switching the the EFT's and it did not help.



  
Date: 21 Dec 2006 10:37:18
From: sprsso
Subject: Re: Unic Twin Diva Pro Problems
Okay.
There are several things going on here. It would be helpful to have
pictures of the front of your machine, but I'm going to try to dig up
the manual/parts list today.
The red light flashing on the control box indicates that your
flowmeter is not reading water passing through it. Another indication
the gicleur is clogged. The gicleur is a small orifice that
ameliorates water flow to the group. It is located behind and to the
right of the group,on the brass group body, mounted with a 22mm nut
and filter screen.
The clank and whirr sounds like the group solenoid valve chattering
during opening and closing, which it will often do when there is no
water to lubricate it.
Where is the pump guage reading in between the clanks?
Does your hot water wand work, and does it activate refill?
If you want to do the work yourself, there are several here who will
help you with direction and parts....al

On 21 Dec 2006 06:39:59 -0800, sc@lynchcomisso.com wrote:

>Let me clarify, only the left head used to work up to a couple of days
>ago. The right group has not worked for some time from what I
>understand. The prior owner replaced the left group with a "Torino"
>branded one and a new Electronic Filling Timer (EFT) (DVOXN2 New).
>
>On the right side the EFT has a red light at the water symbol and a
>green light at the power symbol. Nothing happens when you press the
>control box. When we hooked the machine up, there was no light on the
>Electronic Filling Timer and the fuse had been removed or fallen out.
>
>On the left side, the EFT has no light at the water and a green light
>at the power symbol. When you select a dose on the control box, you
>get a clank and maybe a whirr at the beginning and end of the cycle and
>the red light at the water flashes.
>
>Overall, when you turn the machine on, you get a clank after a few
>seconds. The boiler does not appear to be filling up and the green
>needle does not enter the white area but jumps into it during the
>clanking. I do not hear the pump.
>
>Two weeks ago we began to hear whirring along with pumping during use
>like when you attach a playing card to your bike frame that hits the
>spokes ; ) .
>
>We tried switching the the EFT's and it did not help.



   
Date: 21 Dec 2006 10:44:26
From: sprsso
Subject: Re: Unic Twin Diva Pro Problems
Actually, this light indicates that refill is not happening. Sorry,
been a while....al


>The red light flashing on the control box indicates that your
>flowmeter is not reading water passing through it.




    
Date: 21 Dec 2006 09:15:22
From: GeeDubb
Subject: Re: Unic Twin Diva Pro Problems

"sprsso" <acritzer@cfl.rr.com > wrote in message
news:4ralo2pcom7lmlk5cdq96jq23ur0nu59qp@4ax.com...
> Actually, this light indicates that refill is not happening. Sorry,
> been a while....al
>
>
>>The red light flashing on the control box indicates that your
>>flowmeter is not reading water passing through it.
>
>

I've been leafing through my manual and can't find the name (or drawing) of
the flow regulator valve in the back, left side of the twin (valve after
pump, before groups and boiler fill). If the lock nut loosened this
adjustable valve may have closed up which can cause a blockage as well,
resulting in no water to groups or boiler. I'll try and take a photo of the
valve and post to a.b.c.

Gary



 
Date: 21 Dec 2006 08:49:38
From: sprsso
Subject: Re: Unic Twin Diva Pro Problems
I probably have the manual and could likely help you if I had a better
understanding of your problem.
The "dosers" are known as control boxes, and do more than just control
the shot. What is the behavior of the right group? Is there any
response from loading the portafilter or activating an extraction?
The "clank" you describe is likely the opening and closing of the
group solenoid valve. Can you hear the pump? Any reaction from the
manometer?
If there is no water through the group, the gicleur is most likely
clogged.
Matter of fact, after rereading your post, that is your problem. The
light noise from the pump, the flashing red indicator, the noise from
the solenoid all point to the gicleur.
Let me know if I can help get this working....al


On 21 Dec 2006 05:29:23 -0800, sc@lynchcomisso.com wrote:

>We've inherited this machine and a nice grinder. Hooked it up an have
>been having great shots for two months till last week. Background:
>only the left head works. Push button doser thingy has been replaced
>but don't know when. Beginning of problems was a whirring in the
>pump(?) Now when the machine is on all you here is a clank and
>possible a whirrr. If you press the doser, the clank is heard at the
>beginning of the cycle and at the end. The red indicator light
>flashes. Any ideas. I do not have a parts manual or an instruction
>manual.