Strange smell coming from air vents...hopefully some of you are married to a HVAC
I really need some advice. We have started to notice a pretty strange smell coming from the air conditioner. I thought it was related to once I turn off the air conditioner about 30 minutes later this smell comes through the vents as we continually run the central house fan and it is so strong that it bothers me. There is no smell in the utilities room where there is the air conditioner, furnace, air purifyer, and hot water heater are. No smell whats so ever. Yet this smell is so strange that I can't describe it. Yet it comes through every vent from basement to the second floor. So I thought it had to do with when the air conditioner turns off and now it started this evening when the ac was still running. The smell comes for about 45 minutes and then goes away until the next evening. Yet tonight we had two incidences. I have no idea who to call. What it is. Any advice I would really appreciate. I don't want to spend money on calling the wrong people.