Air Conditioner not cooling

If the servicemen did their job and cleaned the coils and fins and it still is not cooling, did they check the charge?
Does it smell maybe musty and is it dam inside when it is running and sound like it is kinda quiet but making humming noises? If you are running it on low in high humidity or not even in high humidity it may be frozen up. If you check and see ice and water dripping especially when you cut it off it is frozen up.
Let it warm and defrost and then run it on high.
The expansion valve may be freezing up, but surely they checked that?
Have someone else check it while looking over his shoulder and ask him questions. If he finds nothing might need to change the unit out for a 15000, btu unit or add a second unit.
One other thing if it is ducted check the ducts and make sure they are all connected and clear and no insulation or rat;s nest in them.
Probably first thing checked was the foam filter on the intake side. I've seen those things stopped up completely, especially if cooking french fires etc and hot oil. Sometimes the things don't get looked at until they aren't getting cool air.

Your a/c fins might be clogged with crud and not cooling. Either you or a tech needs to get up there and give it a good cleaning.

Suggestion? Absolutely. Clean It! Click this Link for an article written by one of our resident RV techs. It's been either deleted or misplaced on RV.net but I see where Chris posted it elsewhere.

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