YOu're talking about the compressor/system running off of the engine and not a roof top AC unit true???
Under most circumstances its pretty hard to OVER charge... BUT it is possible if you really work at it...
Put a small thermometer in the vent, open the windows and doors when you are trying to charge...
If you can get a 40+ degree drop below ambient thats pretty good but not ideal... I like to see 40 degrees at the vent on my little meat thermometer...
WHen it starts cooling pretty good, close the doors/windows and IF you do have a RECIRCULATE/MAX option see if it eventually will start to cycle/freeze up while sitting/parked...
On cars/trucks once I can get the system to cycle/freeze up by closing windows/doors and going to MAX/recirculate I stop charging...
R134 I assume... Look at all of the unions and try to find a union that looks oily/greasy/dirty...
DONT use any of the "stop leak" charges, but a oil/R134 charge is good to do eventually...
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Thread: Motorhome AC question
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07-09-2016, 04:55 PM #3Already miss the 310/562
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Last edited by 2manymustangs; 07-09-2016 at 05:00 PM.
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