Our Honeywell wall thermostat is over 20 years old. Works ok but at a certain setting it starts to'buzz' so needs a slight adjustment either up or down. What is the process to replace it should I feel the need, ie should I just shut off the electric and remove from the wall. What is the step by step method? Thanks
Replacing room thermostat
- Thread starter mikegm
- Start date
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Turn off the switch that supplies the whole heating system. It'll be on a plate with a fuse carrier on it too.
I think I have the same thermostat as you - 20 year old honeywell that buzzes about 15 seconds before it turns the heating on. Nowt wrong with it though.
If it was knackered it would be buzzing as it shut off - arcing as it breaks contact.
But they arent very modern looking i guess! Only reason mine is still there is because its in the back bedroom that nobody uses, and im getting a new heating system in the next couple of years.
I think I have the same thermostat as you - 20 year old honeywell that buzzes about 15 seconds before it turns the heating on. Nowt wrong with it though.
If it was knackered it would be buzzing as it shut off - arcing as it breaks contact.
But they arent very modern looking i guess! Only reason mine is still there is because its in the back bedroom that nobody uses, and im getting a new heating system in the next couple of years.
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Bear in mind that as your system is that old it could possibly only have Line and switched Line at the stat. Most modern ones need a neutral as well for the anticipator circuit (which improves the performance). It is possible to still obtain 2 wire stats but it's worth you checking first !
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