[johnny wen]

Sister said burn smell coming on when heat on. She has had it on already for couple weeks since it has been cold
SPLIT system

Im going to look into the blower motor and check
How do I check amp? which wire?
does the 10+ old motor need oiling? can that cause this?

Thank

[kelvin30]

I suggest you, You have to contact an Air conditioner dealer for this problem.
If you are interested then i know a dealer name who deals about this problem. For more information you can contact that Air Conditioner Dealer

[mark norder]

in reply to your question, I dont think you have a problem with the blower motor, and they are permanently lubricated - each season the gas burner and heat exchanger should be cleaned out * disassembled and cleaned with a brush and use compressed air to blow out burners, combustion area, and inside and outside the heat exchanger, being careful not to break the ignitor.
if you are not comfortable doing the cleaning, a local service co. should be able to do it for their basic service call.

dust on the outside of the heat exchanger is what you are smelling, each time burner heats, it burns the dust on the metal surface, which gets forced into the house by the blower. - i assume it gas, but if not, its the same problem, dust needs cleaned from the heat exchanger. hope this helps, echofreez