Duct cleaning problems

Probably might be something from the recent SoCa wildfires?? Most likely mixing with the leaking refrigerant from your cooling coil and making a black gritty mess. Try a UV light and replace your thermostat. Bubba

Walter R. posted for all of us...

Did you clean the soot from the thermostat?

Did they take your furnace out out and hose it down with muriatic acid?

They may have to clean your coil with a 80 grit in a belt sander!

To be honest, if you have / had flexible ducting, and the smoke has permiated the duct, you will need your local HVAC company to come out the replace all accesable ducting. You'll never, I mean never get the smell out.

If the duct cleaning company used a flexible spiral brush, it likely damaged some of the ducting [plastic with soot].

Oh, and one more thing. Next time make sure your house is as sealed up as possible and turn off all your air handlers. It's pretty much impossible to decently clean most duct work.

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