I have a Main Combi 24he with an unusual fault. When DHW is run, the fan kicks in, pump turns and then the burner fires, a few seconds later, the burner goes out and all the power cuts, the indicator lights all go out. A second later, the power comes back on and the cycle starts again on- off on - off
First of all changed the pressure switch, made no difference, then it seemed there may be a power issue so had the board looked at last week, some of the caps were reading low so had them all changed and any dry joints/track soldered and made good. It has worked fine since Monday evening but fault started again this morning! Now it is working as normal again, so the fault seems intermittent!
Any help is much appreciated!
First of all changed the pressure switch, made no difference, then it seemed there may be a power issue so had the board looked at last week, some of the caps were reading low so had them all changed and any dry joints/track soldered and made good. It has worked fine since Monday evening but fault started again this morning! Now it is working as normal again, so the fault seems intermittent!
Any help is much appreciated!
