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Old 07-28-2011, 04:21 PM   #11
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The freon type should be listed somewhere on the A/C unit. Look for the ID tag.

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Old 07-28-2011, 08:08 PM   #12
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Before I would have a professional have at it, you can make some easy inspections yourself. First and I'm sure you have, inspect your filter material in the return air. Could be clogged or if torn/missing, the evaporator(cold coil) could be dirty not letting good airflow through. Next, I'd check the rooftop condenser coil. Could have bent fins that need straightened(from hail damage). This would affect your performance out of your A/C. If you're in the extreme heat like we are in the midwest, get a fan to supplement & keep the air moving near the floor. When it gets over 95 degrees, a single A/C in a trailer can't keep up when your parked in the open sun. Go swimming! Good luck.

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Old 07-28-2011, 08:27 PM   #13
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It is possibly one of the newer freons possibly a 401a and the only way it can be recharged is by a Refrigeration tech. They do not use tap valves on any new freon types they have to use a temp type valve and remove all freon first then they weld on a temp scharader type valve check for and repair leaks. Then they fill unit to the amount listed on unit then they pinch off tube before valve cut off and weld the end of tube closed.


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