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Domestic a/c runs fine for hours then trips circuit breaker

I have changed out the circuit breaker, but it continues to trip. What is weird is that it does this when it is cooler outside, around 70 degrees. In the hot part of the day, around 80-90 degrees it runs fine. It usually starts around 7pm and trips all night until it warms up the next day. This a/c is in a motorhome.

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Check the difference between your incoming voltages at these times, it may be, if your plugged in to park power, the voltage getting to you may be less due to neighbors using more. If you have a genny, try using it when this happens and see if it trips. More lights, TV's etc are probably being used at night by others.

Posted on Aug 01, 2009

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