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My Boiler is not responding to thermostat settings

GrahamB
GrahamB ✭
in General Questions & Topics

I have my thermostat set @ 19.5 degrees and different schedules set at varying times of day or night however just recently the temperature has risen to 22.5 and the boiler seems to be ignoring the schedules and preset temperatures even Turing of the heating within the app the boiler just keeps on heating. I have had the system for 8 years without any issues until now what has gone wrong?

Bridge firmware 47.2

Smart thermostat firmware 54.20

Extension kit firmware 81.1

Answers

  • policywonk
    policywonk ✭✭✭
    edited November 6
    The fact you have an extension kit suggests that that is actually controlling the boiler. Have you studied the triggers using the switches on that kit:
    * whether pressing the CH button on the kit forces the boiler to start and,
    * whether pressing the same button to force CH off actually stops the boiler?
    Now if your problem of the boiler running on, or failing to start continue, it suggests that the thermostat is wired.

    Is that true? If so, does it actuate a motorised valve? It could be your valve is stuck, needs to be freed, or it's motor head replaced.

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