central heating controller

  1. MrDarkGray

    Heating zones problem (radiators not coming on)

    Hello everyone, I’m experiencing some problems with my dual-zone central heating. The system has a boiler in the downstairs kitchen and a hot water tank with an expansion tank on top on the first floor. The ground floor is controlled via a thermostat down there, and the first and second floors...
    • MrDarkGray
    • Thread
    • central heating central heating boiler problem central heating controller heating heating controlls heating failed hot tank hot water radiator zone 2
    • Replies: 4
    • Forum: Plumbing and Central Heating
  2. Hamish McTavish

    Replacing a Danfoss FP715Si (TP9000) 2-channel CH/HW programmer

    Hi all, I currently have installed a Danfoss FP715Si (TP9000) 2-channel CH/HW programmer, but the factory-set clock is entirely wrong and it is just getting old. So it is time to replace it with something more modern. Ideally, I would like to be able to replace it with something that can reuse...
    • Hamish McTavish
    • Thread
    • 2-channel ch/hw programmer central heating controller central heating programmer danfoss fp715si hot water controller hot water programmer tp9000 wiring
    • Replies: 23
    • Forum: Electrics UK
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