After working perfectly for over 3 years, my Honeywell thermostatic controller has lost connection with the panel by the boiler.
I've changed batteries and tried the instructions on Honeywell's website to rebind them but it just enters the rebinding mode but doesn't connect. The panel by the boiler has a flashing red light.
I'm trying to establish if the fault is likely to be with the controller (which is free standing and easy to replace) or with the wired part that connects to the boiler? Don't mind calling someone out but it would be such a waste of time and money if they just tell me to buy a new controller anyway.
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Property/DIY
Honeywell CM927 thermostat problems - anyone?
3 replies
dotandstripe · 19/03/2017 13:40
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