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Recent content by dvans

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    Honeywell heating controls broken

    New control unit in place and all working properly now. Thanks again for the advice.
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    Honeywell heating controls broken

    Thanks guys. I've pulled the panel off and at the very least there's a blown resistor. It's definitely a ST699 and the local Screwfix have them in stock so I think I'll just pop down and get a new one before the missus gets home.
  3. D

    Honeywell heating controls broken

    Hi, I have a system with Honeywell heating controls and a Sunvic thermostat. Not sure what model the controls are but look like an older version of the ST699. The thermostat had been wired in reverse so decided to fix it today. The wiring diagram I found suggested swapping 1 and 2 wires on...
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