a/c run with burn smell
Hi. The hvac guy told me he has no idea why the unit would smell. He checked the circuit board? thing and it will run with nothing wrong, but it smells like it is burning around the Carrier unit in the basement. He told me that if the circuit part were bad it would just stop. So now I'm supposed to wait for it to stop and then call him.
Everything is running normally. House is cooling fine. Fans are running fine.
Burning smell is around the inside unit (Carrier Weathermaker Infinity Gas Furnace, 10 years old. A/C unit outside is >20 yrs. old).
Any suggestions on what he should look for? We have sniffed everywhere but can't find the source. Thank you in advance for any suggestions.