Question about Dometic Rooftop RV Air Conditioner
Hi, most all a/c that are on the market are designed for that exact temperature, 95*F. After that they will loose up to 40 % of there efficiency. But tripping the breaker indicates it is working to hard and over ampping so there is a problem up top. It may just be a very dirty condenser coil which will cause this unit to build the high head pressure causing the compressor to draw more amps then normal and will trip this breaker. If you can, go up and remove the cover. Watch it run to see if the condenser fan motor is running good. Look at the coil for dust and dirt build up. Its a good sign that it cools at 95* F, so I believe its just a dirty condenser coil. This will cause your internal pressures to peg out in temperatures at 95 and above!.Even if it looks OK, kill the power and run a water hose up top. Was out this coil and watch the dirt run out of it. I have seen the head pressure on units at 400 P.S.I. with a dirty coil and after washing drop 200 P.S.I!! If the fan is running good, this will be your problem. Before you go up, take a good flat heat screw driver along and when you are done cleaning this check the electrical box, and make sure all of the main connections are good and tight. Check to see if there are any signs of burned wires as this will also trip breakers as when loose they will create heat and burn the ends. This will solve your problem. You may want to check the 2- wires at the breaker also, just be sure it is off and tighten just the wires that go into the breaker as they will be dead at that point. Please use caution!. Doing all of this will take care of your problem, I am sure unless you have a internal compressor problem which I don't believe you do. Please don't forget to rate me as I know you will be kind to me. Please keep me posted and I will be checking up on you also. I wish you the best.
A/C, Heating Contractor
Posted on Aug 28, 2010
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Posted on Jan 02, 2017
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