Soldered as many joints as practical on the PCB - no change!!!
While I had my head in the airing cupboard over the weekend I heard the pump stop for about 4 seconds. The boiler was not heating at the time so no crashing and banging. Looks like new PCB time. Thanks for your help anyway guys.
While I had my head in the airing cupboard over the weekend I heard the pump stop for about 4 seconds. The boiler was not heating at the time so no crashing and banging. Looks like new PCB time. Thanks for your help anyway guys.