the fan starts up, the pilot lights up, but occasionally the main burner fails to ignite. Turning the boiler off and waiting for a while seems to get it going again, but I suspect this is an intermittent fault which eventually will cause the boiler to fail permanently.
The fauklt finder chart suggests the main gas solenoid valve needs replacing, but I'm no expert, so any help gratefully received.
The fauklt finder chart suggests the main gas solenoid valve needs replacing, but I'm no expert, so any help gratefully received.