Hi I have a Glowworm 40FF and it fires up ok but then trips out after a little while with the two LEDs alternately flashing.
The thermistor value is ok and the OH stat switch is closed
The manual says this is a software sequence error so I thought it was a PCB fault
However I have now replaced the PCB and I have the same fault
Before I replaced the PCB the fault changed - I could hear sparking but there was no mains to the gas valve. Then that problem cleared and I was back with the flashing lights
Can anyone please help me with this
Regards
Tony