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Hi Chris I changed over the PCB and the boiler comes one, burner lights for a few mins, shuts down (fan running) red light on continuosly, burner does not light up again. Same again after reset. I'm thinking the microswitch that is attached close to the pressure diaphram at the vent might be...

I had a problem with my 14e whereby the unit starts up running then the burner cuts out, red light on (flashing) and the fan continues. This was repaired by replacing the ntc thermister. My sisters unit has an issue now, turn on unit, fan runs pump runs, no burner. Changed thermister , no...

I have a 14e and my sister has a 20e. Both have the exact same problem and after an expensive visit from the gas board who told me what the symtoms of the problem was and that my board 'was on its way out' I had a look through these forums. Another user replaced the NTC thermistor which solved...