the reset and burner lights keep flashing and the boiler will not switch on

audrey, October 2010

sounds like a thermister fault is it a micron! with green led,s flashing! burner fast flashin and reset slowly?if so termister needs 2 be replaced

peter dublin, November 2010

I HAVE HAD SAME PROBLEM SINCE 2009.I put this question then .After speaking to several techno's no suitable answer. The boiler is still switching random but not every day .When it does the burner flashes fast and the reset slowly, switch the boiler stat off then on and it fires up then off then fires up and stays on. it's just a pain

Bernie (retired Plumber), November 2010