British Gas version. Have checked all connections. All correct lights on. No ignition on either CH or Domestic. Pump running continually. No problem with wireless thermostat. PCB looks clean and free from damage. I am reluctant to pay £150 for a replacement board if it is likely to be another problem. Sometimes the C1 fan code ( slow fan) comes up. The impeller spins feely by hand but no rotation otherwise and I do not have a positive supply from the board to the fan motor.
Your help will be appreciated, thanks, John
Your help will be appreciated, thanks, John
