Fujitsu AST24RGA-W We have cleaned the filters and any accessable internals we have also cleared the drain and it appears to flow well.
My AC tech obtained a product made by Nu-Calgon, Evap Pow'R 4168-08.
"concentrated metal-safe evaporator coil cleaner" Use as directed. Removed the smell.
Check the location of your drain, it might be installed in a ditch or smelly location. Install "P" trap in the drain pipe pipe to avoid the smell coming back into the drain.
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What type of odor is it?
musty
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