I have a CM927 which is a couple of years old.
Individual cells in the LCD screen are starting to fail - still usable at
the moment but a bit disconcerting.

Google gives a mixed picture.
Some posters say they have had loads of failures.
Others say they have never had a problem.

Anyone here had the problem with a CM927 - either own or supplied to
others?

More importantly, have you had more than one fail?

Cheers

Dave R

--
Windows 8.1 on PCSpecialist box

On 5 Jul 2015 11:47:12 GMT, David wrote:

I have a CM927 which is a couple of years old.
Individual cells in the LCD screen are starting to fail - still usable at
the moment but a bit disconcerting.

Google gives a mixed picture.
Some posters say they have had loads of failures.
Others say they have never had a problem.

Anyone here had the problem with a CM927 - either own or supplied to
others?

More importantly, have you had more than one fail?

Cheers

Dave R

Does applying gentle pressure to the display make the faulty segments
work?

There are two common ways the LCD could be connected to the PCB.

A ribbon cable bonded to the glass,
or a clamp arrangement with a zebrastripe rubber connector sandwiched
between.

The latter type often can be cleaned up successfully.

I've not had much success with the bonded type.




--

Graham.

%Profound_observation%

replying to David , Phil wrote:
wibble wrote:

I have a CM927 which is a couple of years old.
Individual cells in the LCD screen are starting to fail - still usable at
the moment but a bit disconcerting.
Google gives a mixed picture.
Some posters say they have had loads of failures.
Others say they have never had a problem.
Anyone here had the problem with a CM927 - either own or supplied to
others?
More importantly, have you had more than one fail?
Cheers
Dave R
--
Windows 8.1 on PCSpecialist box



had the same problem found a diy fix in another forum

Strip the unit and remove the circuit board (just a few plastic clips, no
screws). Remove the LCD assembly from the circuit board (more plastic
clips and an eight pin push connection). Removed the LCD unit from the
clear plastic housing (more plastic clips). Finally heat up the plastic
ribbon where it is stuck to the circuit board (hair dryer will do trick)
and then firmly press it onto the circuit board... probably worth doing
this several times; in effect you are remating the ribbon to the circuit
board by softening the adhesive. Put it all back together and it should be
working again.

worked for me

--

On Tue, 20 Oct 2015 19:44:02 +0000, Phil wrote:


Finally heat up the plastic ribbon where it is stuck to the circuit
board (hair dryer will do trick) and then firmly press it onto the
circuit board... probably worth doing this several times; in effect you
are remating the ribbon to the circuit board by softening the adhesive.

I wonder if that will work for the ribbon cable that is unreliable on
the LCD disply of our microwave. Several tracks are "broken" but if
you ramp up the humidity they work. This is a flat ribbon that splits
and is bonded to both sides of the glass of the LCD itself with a
rather sharp bend along the edge of the glass.

--
Cheers
Dave.

replying to Phil , Gary Must wrote:
Phil wrote:

had the same problem found a diy fix in another forum
Strip the unit and remove the circuit board (just a few plastic clips, no
screws). Remove the LCD assembly from the circuit board (more plastic clips
and
an eight pin push connection). Removed the LCD unit from the clear plastic
housing (more plastic clips). Finally heat up the plastic ribbon where it
is
stuck to the circuit board (hair dryer will do trick) and then firmly press
it
onto the circuit board... probably worth doing this several times; in
effect
you
are remating the ribbon to the circuit board by softening the adhesive. Put
it
all back together and it should be working again.
worked for me



Just wanted to say thank you for your fix. It worked brilliantly and i now
have a fully working display.


--

The manufacturer seems to have made it less than rugged from your
description. Reall for the need of a few more clips instead of glue it
probably means many people are binning them.
Brian

--
From the Sofa of Brian Gaff Reply address is active
Remember, if you don't like where I post
or what I say, you don't have to
read my posts! :-)
"Gary Must" wrote in
message roups.com...
replying to Phil , Gary Must wrote:
Phil wrote:

had the same problem found a diy fix in another forum
Strip the unit and remove the circuit board (just a few plastic clips, no
screws). Remove the LCD assembly from the circuit board (more plastic
clips
and
an eight pin push connection). Removed the LCD unit from the clear
plastic
housing (more plastic clips). Finally heat up the plastic ribbon where it
is
stuck to the circuit board (hair dryer will do trick) and then firmly
press
it
onto the circuit board... probably worth doing this several times; in
effect
you
are remating the ribbon to the circuit board by softening the adhesive.
Put
it
all back together and it should be working again. worked for me



Just wanted to say thank you for your fix. It worked brilliantly and i now
have a fully working display.


--

replying to Phil, Davo wrote:
My first thermostats digits died almost over night after about fours yrs being
on the living room wall...I contacted the installer and he charged me £70 for
replacement......guess what no 2 has now suffered the same fate...after doing
an Internet search I found lots of people had suffered the same problem...so I
opened up the old thermostat took it apart to reveal the lcd ribbon...very
east task with nothing more than a flat blade screwdriver just be gentle and
methodical and it won't fight back...heat up the ribbon with hairdryer....like
magic the lcd kicked back to life after being completely blank and in its
replacements box for almost five years

The hairdryer method definitely works for how long nobody knows but now I have
a spare so not worried anymore.

--
posted from
http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Phil, Albert wrote:
This worked for me also.

--
posted from
http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Davo, nick wrote:
i had this problem this week - failing digits. A call to Honeywell was
answered promptly, and i received an email within 5 mins asking fort a picture
of the screen and the rear serial # sticker and a receipt pic ( not available.

i then had an email with a returns address and an offwr of a new CM927
controller!!

so they seem to have sorted things at their end.

Nick R

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to David, Dafyd Hopkins wrote:
I actually just put mine on the hot water tank for 24hrs. it was registering
40c when I took out just now and the screen is all back..

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Graham., Mark Dalzell wrote:
I have just tried Phil's remedy and it worked first time. Thank you very much
indeed.

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Dave Liquorice, B wrote:
Phil, thank you so much, your fix just worked for us after I called Honeywell
and they were only able to advise buying a new unit at a cost of £90!
Brilliant :-)

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

In article s.com, B
m scribeth thus
replying to Dave Liquorice, B wrote:
Phil, thank you so much, your fix just worked for us after I called Honeywell
and they were only able to advise buying a new unit at a cost of £90!
Brilliant :-)


Just tied up this number with our controller.

Thus far has worked fine;!...
--
Tony Sayer

replying to David, David C wrote:
I have a CM927 which is a couple of years old. Individual cells in the LCD
screen are starting to fail - still usable at the moment but a bit disconcerting.

Google gives a mixed picture. Some posters say they have had loads of
failures. Others say they have never had a problem.

Anyone here had the problem with a CM927 - either own or supplied to others?

More importantly, have you had more than one fail?

Cheers

Dave R
My first one failed and was replaced under warranty , it wasn't controlling
correctly.
The replacement has just failed , screen has some minor defects . More
importantly the target temp can only be set in 5 degree steps , e.g. to 20 or
25 , and the room temperature is indicating 35 - clearly wrong. I've tried a
factory reset but no improvement.

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Davo, Leddy wrote:
Hi , I strip the unit down as you described but I couldn't see a ribbon (or
what I think a ribbon should look like) . The screen just had 8/10 metal
prongs that pushed into a unit . Is this the same unit you're describing? Look
forward to your reply

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

On 19/09/16 13:14, Leddy wrote:
replying to Davo, Leddy wrote:
Hi , I strip the unit down as you described but I couldn't see a ribbon (or
what I think a ribbon should look like) . The screen just had 8/10 metal
prongs that pushed into a unit . Is this the same unit you're
describing? Look
forward to your reply

Post is a year out if date. **** off.


--
How fortunate for governments that the people they administer don't think.

Adolf Hitler

replying to Phil, David M wrote:
Cheers Phil, worked a treat for me, my display was completely gone, had faded
over the last year. Look for the screwdriver symbols in the battery bay and
poke a flat head in to release / unclip the main cover and it is just the 8
pin and some adhesive pads to remove the LDC unit from the motherboard. 3 x
10 secs with a haidryer on high pointed at the ribbon at the top edge, push it
down, clip it all back together and the display is now 100% working - wow!
I've got three of these so and the display is going on them all but apart from
that they are working fine - this has saved me a good few quid!

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

On Thursday, August 4, 2016 at 1:14:04 PM UTC+1, nick wrote:
replying to Davo, nick wrote:
i had this problem this week - failing digits. A call to Honeywell was
answered promptly, and i received an email within 5 mins asking fort a picture
of the screen and the rear serial # sticker and a receipt pic ( not available.

i then had an email with a returns address and an offwr of a new CM927
controller!!

so they seem to have sorted things at their end.

Nick R

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm



I've replaced several CM927 mostly because the buttons stop working. Then I found that the old (more robust) design is still available but sold under the CENTER brand (I think that's Plumcenter).

RObert

replying to David C, David C wrote:
Further to my previous post.
I contacted Honeywell , sent evidence, and they are sending me a replacement.
Great service.

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Leddy, Simon wrote:
I have the same issue - I was able to access the circuit board easily and take
out the screen but I can't see anything like a ribbon, only a set of pins. I
tried heating these up but it didn't achieve anything when I put the unit back
together. :-(

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to David C, Mike wrote:
Thanks for the fix
Worked a dream

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Phil, Ianmc wrote:
Did this and it is better may donit again but I can see enough to use it now

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Simon, Andy wrote:
Hi Simon the ribbon is grey plastic strip on the edge of lcd

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Phil, T J Fisher wrote:
Phil you are a genius, you have just saved me over a £100 on a new unit. I
found the tools for replacing Iphone screens did the job perfectly. Thanks
again pal.

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Phil, Jon Redding wrote:
Hello Phil, I have conducted the proposed solution to the display problem of
missing segments. Followed the detailed and precise instructions to the
absolute letter. Powere up the unit, et voila, all segments are working again.
I tell you what if i get a year out of it i will be happy.

--
for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

Jon Redding wrote:

all segments are working again.

Are HomeOwnersHub paying more per click on AdWords for "CM927" than
Honeywell themselves?

replying to Simon, Fraser wrote:
If you remove the LCD display from its casing, it splits in two. The ribbon
cable is attached to the PCB by a large white sticky pad. I prised the pad
away a bit using a dental pick then blasted with a hair dryer. While still
hot, push the pad firmly back in place. Worked first time. The whole repair
took less than 15 mins
http://www.homeownershub.com/img/7q

replying to Phil, tabs wrote:
Just tried that mathod n it worked for me

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for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Fraser, rover218 wrote:
Hello, can you post a picture how remove display from plastic ?

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for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to rover218, Fraser wrote:
If I remember correctly, it's held in place with lugs. Just prize out the
display gently with a blunt knife while pushing the lugs aside. This photo
might not help but I can't get another one as the unit is back on the wall
doing its job.
http://www.homeownershub.com/img/7s
http://www.homeownershub.com/img/7t

replying to David, andydavis01 wrote:
i have same problem and unit is only 3 years old!!!!!!!!!


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for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to David M, Michael wrote:
this video worked for me.
https://www.youtube.com/watch?v=6cnCDOfCafs

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for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

replying to Phil, Andy M wrote:
Hi Just to say that i have just carried out Phil's suggested repair and it
works perfectly. Whole job took about 20mins to complete and now my Honeywell
CM927 is as good as new.Cheers

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for full context, visit http://www.homeownershub.com/uk-diy/...n-1058940-.htm

Andy M wrote:

Just to say that i have just carried out Phil's suggested repair and
it works perfectly.

Perhaps it's time for http://www.honeywellcm927ownershub.com ?

replying to David M, Dan Fee wrote:
Im an installer i buy one of these a week and despite assurances from the
manufacturer that theyve improved i still have a failure rate of 1 in 10, i
ought to switch to an alternative but dont know of a better one

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On 11/02/2017 15:14, Dan Fee wrote:
replying to David M, Dan Fee wrote:
Im an installer i buy one of these a week and despite assurances from the
manufacturer that theyve improved i still have a failure rate of 1 in 10,




i ought to switch to an alternative but dont know of a better one


Usenet
--
Adam

replying to Phil, Filly wrote:
Worked for me too, though not straight away as there were more missing digits
than when I started when I put it back together. I thought I'd broken it but
10 mins later everything displaying as it should do! Thanks

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replying to Fraser, Karen wrote:
Thanks for the pictures Fraser, I'm afraid I couldn't have managed without
them. CM927 fixed and working perfectly well, saved me almost £100 so I am in
your debt... I love fixing things and of course saving money!

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for full context, visit https://www.homeownershub.com/uk-diy...n-1058940-.htm

replying to David, Noureen wrote:
The screen has become faulty on my honey well thermostat

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for full context, visit https://www.homeownershub.com/uk-diy...n-1058940-.htm

replying to Phil, Rakrzy wrote:
Great advice! Worked perfectly, saved the cost of a new controller. Thanks!

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