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You are a star, it has had me stumped for a while. The stat was put in a few days ago! So I assumed it was something I had done today! Solved! :) and thanked!

The boiler is always on for the hot water (HW). The central heating (CH) comes into play when the pump is turned on via the room stat. However the room stat turns the pump on when it should be off, i.e. when at say 10 degrees, when it is turned to 30degrees the system the turns off. The room...

Hi, I have spemt the afternoon installing a new programmer and room stat and have hit a snag on testing. The HW works a treat, as does the CH, with the exception of the room stat heats up when it is set to a temp lower than room temp and doesn't when set higher, eg 32 degrees. I'm...