Thermostat behaving abnormally

[collinsc]

Probably time for a new stat, the only strange thing is what I mentioned before where (maybe on the other site you posted on) the set point temp was 17.5C and the indicated room temp was 16C with a boiler (flame) symbol demand displayed on the controller so the boiler should have been firing at this stage, did you notice this morning if the demand symbol was displayed?, if you didn't look for it, maybe check it tomorrow morning and if it is displayed check whether the boiler is firing or not or just firing intermittently.

Thanks. Yes the boiler flame symbol was displayed.
Yeh prob right re a new one.

 

[Johntheo5]

Would suggest considering the EPH HRT battery powered stat, post #41.

 

[collinsc]

Would suggest considering the EPH HRT battery powered stat, post #41.

Thanks. Any idea on prices and rough installation charges?

 

[Johntheo5]

Around £40/£50 but this is a non programmable stat whereas your existing one is, you may want to programe on/off times at some stage.
No idea of installation costs but should only take less than a hour including set up.

 

[collinsc]

Around £40/£50 but this is a non programmable stat whereas your existing one is, you may want to programe on/off times at some stage.
No idea of installation costs but should only take less than a hour including set up.

Thanks