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Old 06-19-2015, 06:55 PM   #1
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A/C Trips Breaker

We have a 2012 Rockwood. The temps have been in the 90's the last few days and we have our thermostat set between 70 & 75. It seems to run half the day and then the 20 amp breaker blows. By the time we get home from work the temp inside reaches 85-95 degrees. We reset the breaker and the unit kicked right on and cools it down. We are temporarily living in the trailer and we have 2 cats inside. We don't want to cook them. What could be the possible cause of the unit blowing the breaker?
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Old 06-19-2015, 09:07 PM   #2
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Don't know your unit, is it 30 amps? If so is your frig and water heater set to electric. If they are and start when the ac is on then the cb blows. If this is what happens turn the frig to propane and the water heater to propane or off. Turn off all other electrics.
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Old 06-19-2015, 09:22 PM   #3
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You don't say where you are staying. If you are in a large campground and many of your neighbors are running their AC in 90 degree weather, it is possible that the voltage is getting low. When the voltage drops, the compressor motor draws more current to do its job. Also the AC cycles on and off more frequently due to the heat. When the pressure in the system doesn't have time to equalize due to short cycles, it causes the compressor to work harder ( aka draw more current) to start. On hot days turn off water heater or change to propane.
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Old 06-19-2015, 09:37 PM   #4
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Originally Posted by audrobcroft View Post
We have a 2012 Rockwood. The temps have been in the 90's the last few days and we have our thermostat set between 70 & 75. It seems to run half the day and then the 20 amp breaker blows. By the time we get home from work the temp inside reaches 85-95 degrees. We reset the breaker and the unit kicked right on and cools it down. We are temporarily living in the trailer and we have 2 cats inside. We don't want to cook them. What could be the possible cause of the unit blowing the breaker?
Can I ask exactly what you have the travel trailer plugged into? Is it at a campground or other? Are you plugged into a dedicated 30 amp outlet or are using an adapter to possibly plug into perhaps a 15 or 20 amp outlet?
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Old 06-20-2015, 05:08 AM   #5
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We are parked in an RV park. The unit is 30 amp but we have an adapter and are actually plugged into the 50 amp outside. It is not a large park...only about 15 other units. This is the first time we've had this issue. It's been lived in before in hotter weather than now. Had our brother in law over last night looking at it and he seems to think that the compressor is getting too hot (sun beating down on it combined with usage) and it grounds out which causes a spike which trips the breaker.
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Old 06-20-2015, 12:58 PM   #6
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My breake would Trip during the night my Thermostat was bad, I changed it and never had any problem with the breaker tripping.


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Old 06-20-2015, 01:18 PM   #7
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Originally Posted by audrobcroft View Post
We have a 2012 Rockwood. The temps have been in the 90's the last few days and we have our thermostat set between 70 & 75. It seems to run half the day and then the 20 amp breaker blows. By the time we get home from work the temp inside reaches 85-95 degrees. We reset the breaker and the unit kicked right on and cools it down. We are temporarily living in the trailer and we have 2 cats inside. We don't want to cook them. What could be the possible cause of the unit blowing the breaker?
Check to make sure your wire is tight in the breaker and at the neutral. First thing to due after that is change the breaker out, they can get weak from heat. Another possibility is that you are short cycling going off on internal over load, and the best thing that anyone can do to help there compressor is to put a hard start unit on at the compressor very easy to do, you can get one at granger.
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Old 06-20-2015, 03:36 PM   #8
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Don't know your unit, is it 30 amps? If so is your frig and water heater set to electric. If they are and start when the ac is on then the cb blows. If this is what happens turn the frig to propane and the water heater to propane or off. Turn off all other electrics.

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