In our old toy hauler, the Dometic AC would freeze up when it was really hot. Could be a symptom of a couple of things. Basically, the compressor running too long or the hot inlet air flow is too slow. Cutting down the duct flow too slow will do this. So will a temp adjustment too far below the existing ambient air, which makes the compressor run a lot. Could be a bad thermocouple. In our case, the thermocouple got its reading on the coil temp by a CAD plated steel bracket and its spring clip mounting to touch the coil itself. That joint was corroded and made bad physical contact, and needed to be cleaned out and restored to a metal-to-metal contact. I also learned to turn the temp down on the wall thermostat gradually, so the compressor would actually cycle on and off occasionally. Once it was down to temp, we never let it get hot again. Just kept it there. YOu might check that out to be sure it's not just a minor maintenance issue like we had.
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2006 Jayco Seneca 34SS
2006 Jeep Wrangler Unlimited Rubicon Toad
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