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Pump is over running and not cutting off unless I power it down at the mains. I'm led to believe that the pcb controls the pump over run. Rich

I seem to need a new PCB for my boiler. I had a new one fitted about 4 years ago and it cost me a bomb ( I think I got ripped off ! ) I am reasonably capable but any advice on how to fit a new pcb myself would be greatly appreciated. Thanks in advance. Richard.

Thanks for response,,was as I suspected. Do yuo know the best place for me to purchase one myself and then get a professional to fit it. I think I was ripped off the last time it was replaced. Thanks again. Richard.

Help Me repair Baxi solo 2pf. Pump won't turn off.

I need help with my central heating system.The pump keeps running even when heating and hot water is turned off. Have to cut power to stop pump.