Question about Coleman Mach 15 Air Conditioner

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At a State park... AC freezing up

Freezing up, to me, usually means low on freon. It is a Coleman Mach (written on side) on a 2003 Coleman Sedona Pop-up. I have been told by people in this area that they do not have a refill setup and has to be installed. Since it is out of warranty, thats not a problem for me. However, they tell me that if they tap it and fill it, they will not guarantee it will not cause further problems. In other words, you pay me big bucks and I won't guarantee it will ever work again.

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If the unit is low on freon, there should be visible signs of leaking somewhere in the upper unit. Are you running the system on Low Cool? This will often times cause the AC to freeze up because the condenser fan and the evaporator fan are on the same motor. If you run the system on low cool, you are not getting enough air movement over your condenser to effectively warm up the freon and thus causing the system to freeze. Turn it to high and adjust the thermostat if it is too cold, this should help.

Jeff

Posted on Jun 29, 2009

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