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Old 07-16-2016, 02:25 PM   #1
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Main breaker trips with AC

My first long trip. Hot day, and the AC unit trips off the main breaker, 15A.
Frig is also running. Each have their own 15A breaker, but the main trips. Seems to me that the main should be 30A, (or something higher than 15A) to match the power plug and campground connection.
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Old 07-16-2016, 04:24 PM   #2
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The main should be 30 amps, make sure your water heater is on propane only and all should be fine.....
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Old 07-16-2016, 04:40 PM   #3
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X2 main should be 30A.
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Old 07-16-2016, 04:43 PM   #4
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Originally Posted by cv ILL View Post
My first long trip. Hot day, and the AC unit trips off the main breaker, 15A.
Frig is also running. Each have their own 15A breaker, but the main trips. Seems to me that the main should be 30A, (or something higher than 15A) to match the power plug and campground connection.
You should have a 30amp breaker for your main are you sure it's 15 amp. 120 volt? If it's 15 amp go buy a 30 amp and put it in, what size A/C do you have. Most A/C will pull about 17 amps FLA with the fan running on a hot day. Is this a new unit, you might also want to pick up a 20 amp for your A/C at the same time? PS: Your RV refer should only pull like 6 amps on electric. I'll attach a list of appliances amps.
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File Type: docx 120 Volt System (1) (1).docx (48.4 KB, 54 views)
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Old 07-16-2016, 05:48 PM   #5
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Thanks, that's what I thought, it should be 30A main for 120v. Guess I need to visit the dealer when I get home.
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Old 07-16-2016, 10:29 PM   #6
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Thanks, that's what I thought, it should be 30A main for 120v. Guess I need to visit the dealer when I get home.
I wouldn't. It be quicker for you just to purchase a new one and replace the incorrect one yourself. Most dealerships take their sweet time to do warranty work. Can you afford to wait weeks for the factory to approve the warranty repair?
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Old 07-17-2016, 07:45 AM   #7
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Like Fonzie said...turn your water heater to propane in hot weather with the a/c running all day and you will be fine. Mine trips on those hot days with a/c running, fridge running and if I try to run water heater on electric.
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Old 07-17-2016, 12:20 PM   #8
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Don't go replacing a 15 Amp breaker with a 30 Amp, unless the wiring is 10 gauge or more. You'll open the door to bigger headaches if you do.
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Old 07-17-2016, 01:04 PM   #9
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Don't go replacing a 15 Amp breaker with a 30 Amp, unless the wiring is 10 gauge or more. You'll open the door to bigger headaches if you do.
x2, you can burn the thing to the ground with you in it if you hook up a 30 amp breaker to anything less than 10 gauge wire. The breaker is there to protect the wiring, not the appliances. It also protects you since it is designed to prevent fires caused by overheated wiring.
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Old 07-17-2016, 01:11 PM   #10
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X3, if your plug is 30 amps, make sure the wiring between the breaker panel and your outside male plug-in is rated for 30 amps eg: # 10 awg
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