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  1. J

    squealing baxi wm70 after bleeding radiators

    Hi - I have an old baxi and it was running fine until I bled the radiators when a few days later it started squealing when switched on from cold. I suppose it is a scaling problem - lots of gas seems to accumulate so perhaps it needs more inhibitor in the tank? Regards, James
  2. J

    Baxi wm70 4pf PCB

    My boiler has stopped working! The pump runs and the system clicks but no spark/ignition. The Light for cover number one is on and number two is flashing. I checked the PCB and there is a blown 3 watt resistor in the corner called R10. Unfortunately, it is all black and I can't see the...
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