Honeywell thermostat help. My Honeywell thermostat CM707 is stoped working. I tried to change batteries when a little piece of metal fell apart. I do not know where it came from. I
HONEYWELL CM707 MANUAL - YouTube
LavaTap Pro Honeywell Wired Programmable Thermostat CM907 CM901 CM707 CM701 Replacement Central Heating 7 Day Programmer Boiler Plus Compliant : Amazon.co.uk: DIY & Tools