I have a 4 ton, 13 yr. old Heating/Air Conditioner Unit that the fan has stopped working. It is still heating but it blows cold air before it gets warm. We just replaced the defrost panel and had it serviced. Any ideas as to what is wrong?

Fan motor is bad? Fan center or fan relay is bad? Could be many things. You will have to do a bit of circuit work to pinpoint the problem and then replace the bad part.

:DYhank You so much, He did find that the sequencer was burned and it was replaced about 2 months. Ago so we are hoping that is the problem..
Fan motor is bad? Fan center or fan relay is bad? Could be many things. You will have to do a bit of circuit work to pinpoint the problem and then replace the bad part.