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Recent content by engineer

  1. E

    Potterton Puma 100

    it will be the wax stat if taps are all ok. also check for dry joint on netural pin top left of main board
  2. E

    potterton suprima 100 failing fan ?

    potterton have modified the pcb and if your boiler is pre week33 1998 it will have a sifan fan with capacitor this must be changed if pcb replaced or capaciton will blow pcb if replacing both you will need a harness kit (5113950)
  3. E

    Puma 80e - low pressure/high pressure

    befor you replace expansion vessal most times this is caused by the connecting pipe from vessal to boiler blocking up de pressure vessal remove and clean pipe recharge vessal & refill
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