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Hi, had diverter valve changed about 6 months ago and all was fine. Heating works but now the hot water is only Luke warm. When hot water tap is running or the shower the boiler keeps switching the burner off and on it might say be on for a minute then goes off say for about 30 seconds then...

Hi can someone point me in the right direction on how to wire it up the instructions are useless. The first picture is how the old thermostat was wired up the second picture is taken from the instructions of the new thermostat, GB image is what I've been following. I know where the mains live...

Hi, it's an old boiler but she works well. The temperature reading on the front doesn't work the pressure does. Is it possible to just change the wire (probe) or do you have to change the complete dial. Ive fitted a new thermometer just to see what the temperature is and it works but its sitting...