the black relay directly behind the pot had blown on the pcb, which I assume caused the power to trip on the comsumer unit. The relay problem is quite a common fault on these boilers I understand.
It's a bloody tough one isn't it?
Boiler neon is the only light lit.
There is permanent and switched live to the boiler.
The pump is running and it is being controlled by the PCB. It continues to run for 5 or 10 mins when programmer goes off, which it should.
The fan is not running and...
Thanks for all your suggestions. Here are my findings:
Overheat stat - continuity checked ok, tried removing wire and the boiler registered an overheat. Reconnected then powered it down and back up again. no change.
Readings taken when trying to start:
switched live is reading 240VAC...
Thanks for your reply Tony. The boiler has never overheated. I checked the leads to the fan for continuity and these were good as were the ones to the pressure switch.
I will check the overheat stat next, the one on my boiler appears different to the schematic on partsarena as it connects...
Here's one for the Baxi experts:
I've got a Baxi solo 2 pf 50 that will not start. It was running fine until last week when it caused the electricity to trip. When the electric was turned back on the pump was on constantly and the boiler would not start.
When the boiler is turned on the...