Why is my heater blowing cold air?

[dk3dknight]

Originally Posted by schultz

Last night my AC/heater unit started blowing cold air when the heat was supposed to be on, which actually droped the temp in the house. I don't think the motor is running when the heat is on, so I think all the rain we have gotten recently has shorted the motor. I just had the motor replaced 6 months ago. Why would a new motor do this?

Ours at work would attempt to cool the room to the requested heat level that generally did not work.

Through in our case it was always the pilot light going out...