I have a Bryant 394 HAD with a fan that runs constantly. The thermostat is in the "auto " mode, and the burner shuts off properly to the thermostat setting. How do I correct this?

I have an Armstrong forced air (induced draft) natural gas furnace with central AC (made around 1990 -- Model: EG6H80DC14-1, Serial: A18315MNA). I had a problem at the end of the heating season where the blower motor would run continuously (even when the thermostat is turned to "off"). I thought...

I have an older heat pump and a/c unit usually works fine today we realized that the blower motor does not shut off.I even turned the thermostat to off but it still runs. Can anyone give me any ideas?Also smelled a little burnt electrical smell when we noticed the blower was not shutting off.

I recently purchased a home with a Goodman furnace and had no idea if the furnace worked or not. The thermostat had the wires from the wall cut with no thermostat, so I replaced it. I'm not sure if the thermostat is wired properly... The wires coming from the wall contain 2 wires, red and white....

The original problem was that periodically the blower motor would stop running when cooling which caused the outdoor unit coil/condenser to freeze up. If I cut the unit off, let it melt, turn it back on, it would run fine for a period. That period could be 3 hours or 3 days. After taking a...