I have a Janitrol gas furnace. On the front panel it says... The Dependable 92. The model # is GMPN100-4 REV B.
The question: When I turn the heat on the furnace will hum but the blower will not come on to circulate the air. I turned the fan on through the thermostat and it started blowing warm air for app. 1 minute than the fan shut off. I looked through the round window in the bottom section of the furnace and saw a steady red light.
I have had no trouble using the air conditioning last week.