Limit Switch is open
Posted: Sat Dec 12, 2009 2:09 pm
I have a Miller M1M, Model #mod M1MC090ABW it is approx. 8 years old. The blower will kick on but the electric ignate doesn't lights the furnace so the blower continues to run dropping the temperature, the blower does not turn back off. I have also heard several clicks, but other times it cycles completely fine. Help where is the limit switch? We did replace the igniter last season. Oh ya when it does not cycle the warning light flashes 1 x which = limit switch is open. 