1.Hi looking for some advise, boiler diagnostic is flashing, fan on but does not activate air pressure switch. But the fan is not running or no power to it
2. removed tubes to air pressure switch. now showing fan off but air pressure switch fails to return to off position,
Any advise would be grateful.
thanks mark
2. removed tubes to air pressure switch. now showing fan off but air pressure switch fails to return to off position,
Any advise would be grateful.
thanks mark