I had the same problem with my duo therm tripping the breaker after running from anywhere between 5 min and 2 hrs. Sometimes it worked longer, sometimes it would trip right away.. Drove me crazy trying to figure it out, i changed both the start capacitor and the run capacitor, but it still tripped it ..I would pull down your wiring coming out of the relay box and look it over real close. My problem was two of the wires going to the thermostat were broken, but still touching. I wasnt able to tell by looking at them, i just pulled at the bend where they were cracked and they came right apart .. The wires get old and brittle after years, any kind of bent or cracked wire you see could be a problem.. I was ready to buy a new unit, but finding those wires saved me the hassle.. So before u go buying new capacitors, take the time to check all your connections, it may be as simple as mine was...Hope that helps
Few reasons, Low voltage coming in, due to long , undersized extension cord, or low power from where plugged in. If it runs ok on fan only, then "moans" and pops breaker when set for cool, it may be a bad capacitor to compressor, if all voltage etc checked out good. A weak breaker may also be cause but not usually.
SOURCE: keeps tripping breaker when running ac
you need to check that the breaker it rated high enough for the ac unit
SOURCE: internal breaker in the plug keeps clicking off,
Inspect the wiring and the terminals. There may be a short circuit somewhere. If you have a tester, you may check the continuity of the two wires. Test the wires after the breaker, the part that goes to the unit.
SOURCE: My unit was working fine until 3 days ago when the
High amp draw can be caused by a few different things, so first check that incoming voltage to trailer is sufficient. (115 volts) Not unusual for some parks to install more hydro hook-ups on a feed line, and when all are up and running, your incoming voltage could be decreased. If your o.k. that way, then I'd start looking at the compressor circuit of your ac, in particular, the compressor start-up capacitor. The capacitor basically stores electricity and boosts it to higher voltage for compressor and fan start-ups to reduce current draw that will trip the breaker. Please have a knowledgeable electrician, or RV tech check this for you, as a capacitor can give a real good high voltage (possible fatal) shock, even when power is off to unit. I also suspect that the start relay has shorted (welded) itself due to high amp draw situation, and that is reason it comes on by itself.
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