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Stem, This wasn't top priority but with weather so cold I'm persisting! I used a multi-meter and there's power to the controller so thinking faulty controller and will try replacing. Fingers crossed it resolves the problem!

Thanks Stem, The instructions look like the correct controller so it is really making me think there is UFH. I have removed the controller face plate and there is definitely wiring to the controller, there was also no fuse in unswitched FCU. I inserted a 13AMP fuse but still no life in...

Hi there, Recently bought a 19th Century terraced house with a two storey rear extension (kitchen at ground floor level, bathroom at 1st floor level). The heating system for the house is a combi boiler and there doesn't appear to be a thermostat in the house just a timer on the boiler. There...

Won't turn on, no logo or info abovious