Hi - I wonder if anyone can help - my mum lives in a bungalow (circa 1990) She seems to have central heating control probelms which I think might be connected to what I think is a frost-stat. She has a garage sited Worcester Bosch Thermotronic 240 Combi BF&OF? boiler. Close to is what I think is the frost stat - it has a numbered dial on the front - from memory these go up from 5 into the 20's and 30's?... It seems like there is a micro switch in this and when pushed it seems to trip the boiler in some way? When the weather is frosty she seems to have the problem of the heating coming on even if switched of at the timer. She appears to have no thermostat in the house - just thermostatic valves on all radiators. the bunglaow is open plan. I read some where that a pipestat is required to trip the boiler out again once it has fired up to protect itself by frost-stat command? I'm not sure if she has one - how would i know? I also read that newer boilers have frost-stats built in?..
Any advice gratefully received!
Thanks
Graham Lennard
Any advice gratefully received!
Thanks
Graham Lennard