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CamperWill's avatar
CamperWill
Explorer
Jul 18, 2016

Air conditioner not cooling

Hey all, I could use some help with troubleshooting our A/C, it quit working last year. It's an airxcel 48253B866 (13.5k unit) and is only 4 years old.

I replaced both the running and fan capacitor and have verified both the fan and the compressor are running. The compressor is pulling about 10 amps when cooling is called for. The evaporator and condenser fins have been cleaned as has the air filter.

With the compressor running for a few minutes the top line gets very hot while the bottom line is around ambient temp.
  • If the compressor is good, any refig. mechanic should be able to find the leak, fix it, and gas it.

    You said "top and bottom" lines, the line from the compressor to the outside condenser coil should be getting warm and the line running from the condenser to the inside evaporator coil and the coil itself should get cold.

    If you have the knowledge and tools to fix it I'm sure it would be cost effective.

    Since it's been open since last year you'll need to pull a very good vacuum once it's repaired and add a dryer.

    A new top unit here is about twice what the repair would cost.

    If you have to pay someone else, the question is what will they charge you. If you take it off the camper and in to their shop they might be real reasonable. Can't hurt to ask.

    You might find a used one for the cost of the repair.
  • midnightsadie wrote:
    x2 the touch test is a good sign. never heard of that brand, is there ports on it to recharge. if not look for a new one, and if charged you gotta find the leak.


    It's a coleman mach 3, airxcel makes them. No recharge ports on any of the units that make from my understanding. Anyone ever do a line tap and recharge on these? Looks like the freon will only run about $60 which is far cheaper then a new unit.
  • x2 the touch test is a good sign. never heard of that brand, is there ports on it to recharge. if not look for a new one, and if charged you gotta find the leak.
  • azdryheat wrote:
    Sounds like it is out of Freon


    That's what I was afraid of :(

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