Gas heating....Honeywell cm921...easy to replace??

[Harvest Fields]

The hall is the coolest room...is that the best room to locate the stat?

Depends on how hot you like the rest of the house. If that is where the window sill is I would maybe move it to a telephone table/stand

 

[Murdoch]

Normally sits on landing window sill

Have you tried replacing the batteries?

 

[Missjoe]

Have you tried replacing the batteries?

Yip. Doesn’t make any difference

 

[Murdoch]

Yip. Doesn’t make any difference

Did you re pair it to the base station?

 

[Tom Leighton]

This may be too late now but did you have any battery acid leakage? I had the screen on mine no longer display anything after a leak. I opened up the thermostat to find that most of one of the pads connecting the batteries to the circuit board had eroded (assuming due to the acid).

I was able to easily fix this (albeit a temporary fix) using a small piece of foil between the circuit board and battery connector (making sure it doesn't touch anything else as you may cause a short). For a long term fix, solder is required.

 

[chris wilde]

hi, our timer screen has gone blank completely so cant set times temperatures date or anything!

Can this be replaced easily by us? Or do we need the gas engineers out?

Can we order replacement online..looks like this model is no longer available.

Thanks in advance!

Hello did you ever get this resolved, as we have the same problem. Thanks Chris

 

[ShaunCorbs]

Hello did you ever get this resolved, as we have the same problem. Thanks Chris

Need to change it common issue

 

[Murdoch]

Hello did you ever get this resolved, as we have the same problem. Thanks Chris

https://ensupport.getconnected.honeywellhome.com/s/article/What-is-the-direct-replacement-of-the-CM921-CM927-Programmable-Room-Thermostat?language=en_US

 

[Missjoe]

Had to get it replaced :-(