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Old 06-28-2015, 11:00 AM   #11
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Hi Is rv at a camp ground or home? If at camp ground are others having trouble with there beakers tripping also? If your not the only one the camp ground may have a low voltage problem which will drive the amps up the lower the voltage goes below 110 volts and cause the breaker to trip ( brown out ). Have seen this is older camp ground that have not made infrastructure up grades to keep up with the larger rv power demands. Or your power pedestal from the camp ground has a problem with the breaker or wiring. If this is the camp grounds equipment have them fix it!!!! Don't play with there property.

Hope this helps Tim
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Old 06-28-2015, 02:26 PM   #12
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Normally the A/C breaker is installed adjacent to the main 30 amp breaker. In hot weather, with the A/C running constantly, the A/C breaker will get very hot (normal) and the main breaker will also get hot. In my experience, the combined temperature can trip the main breaker. My fix then was to swap the A/C breaker load with a different 20 amp breaker (microwave) farther down the bus. Had no more nuisance trips after that.
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Old 06-28-2015, 05:41 PM   #13
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Something you may be missing is the length of the lead in cord. Are you on an extension cord? If so is it heavy enough to carry enough amp. Also a cord end can be loosely connected dropping the amps. These will cause a breaker to trip also.
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Old 06-28-2015, 05:56 PM   #14
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Also, check the breaker on the pole outside. I had a problem with the campsite breaker. It was loosely wired and caused a heavier load on the whole trailer. The voltage was hovering around 109 volts and everything was overheating. I disconnected from the 30amp and used an adapter to the 50amp and everything was fine from then on. Also have had no other problems after that. Just letting you know, it is not ALWAYS the internal wiring. Good luck tracking it down.
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Old 06-28-2015, 06:52 PM   #15
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Quote:
Originally Posted by ben31 View Post
Also, check the breaker on the pole outside. I had a problem with the campsite breaker. It was loosely wired and caused a heavier load on the whole trailer. The voltage was hovering around 109 volts and everything was overheating. I disconnected from the 30amp and used an adapter to the 50amp and everything was fine from then on. Also have had no other problems after that. Just letting you know, it is not ALWAYS the internal wiring. Good luck tracking it down.
Low voltage will cause overheating in only inductive loads like the Air Conditioner Compressor, fan blower motor, and the microwave.

Low voltage makes resistive loads, like the water heater less efficient - less delivered wattage (current will stay the same because the resistance stays the same).

At lower voltages your electronics will become unreliable and may stop working altogether; TV, Radio, Desktop Computer.

Laptop will be unaffected because it is a battery voltage moderated device.

Wall Warts (Phone chargers and laptop power supplies) have output voltage regulators which will deliver their design output voltage and current regardless of input voltage provided it is enough to trigger the voltage regulator to regulate.
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Old 06-28-2015, 09:16 PM   #16
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Get an AC ammeter and check the actual load with various loads. Then you know the situation.
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Old 06-29-2015, 07:46 AM   #17
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Yarome is right about breakers getting weak after several tips,,,
Hope you never turned the W/H on with out being full of water !!!
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Old 06-29-2015, 07:22 PM   #18
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Thanks to all wil replace main and try to more aware of current draw
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