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  1. J

    Combi Zoning

    Anybody know any problems with zoning a combi, does a circuit need leaving open for pump overrun to work
  2. J

    Energysaver 50 wierd

    I am trying to diagnose a problem with a Glow-worm Energysaver 50 that is not igniting. The orange demand light is on and the fan is running, the APS microswith is clicking and the electrodes are sparking. The solenoid coils are energizing on the gas valve, and the valve is clicking open. but...
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