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Old 04-16-2017, 03:31 AM   #1
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Brand: Thor Motor Coach
State: South Carolina
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THOR #7136
Tripping external breaker

We have a recently bought new 2017 ACE 29.2. At home we had a 30 amp plug installed.
Once, overnight with only the fridge running it tripped the breaker. Didn't think much of it until this week. While at Disney the external breaker tripped multiple times. First time was while we were in the parks and our puppy was hanging out in the RV. That time we had AC, fridge, water heater, and ice maker plugged so thought we may have over loaded.
A Disney service person came out and checked the outlet and it all checked out as functioning properly.
It occurred 3 more times when only fridge and AC were running.
We are now gun shy about taking out dog. We have a month long cross country trip planned in June.
Any thoughts as to what could be causing the issue?
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Old 04-16-2017, 04:00 AM   #2
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THOR #6917
Wow, that is scary. Your doggie with no AC would not be good. I have not idea what this could be, but would get with Thor asap. You have to be able to have confidence in the unit and taking your doggie.
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Old 04-16-2017, 04:58 AM   #3
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THOR #5112
ever tried to plug it into 50 amp?in another post you said it is 50 amp with 2 air units.
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Old 04-16-2017, 05:17 AM   #4
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THOR #5196
If you have a 50 amp coach and are plugged in to 30 amp you need to always be mindful of how much power you're pulling and not overload the breaker. Easy to do!
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Old 04-16-2017, 06:00 AM   #5
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Quote:
Originally Posted by tigwelder View Post
ever tried to plug it into 50 amp?in another post you said it is 50 amp with 2 air units.
I looked at RVinDoc's other 2 posts and nothing mentions 50 amp.
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Old 04-16-2017, 01:30 PM   #6
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Model: Palazzo 33.3 34'bunkhouse
State: Georgia
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THOR #4735
yes, it sounds like your recent trip you overloaded the 30a shore power breaker... demanding too much power all at the same time... while each of these items are fine to run on their own, several at the same time would push the power maximum.

sometimes the water heater might be ON, but not really creating heat, which is fine, but when it heats up the element, then it is drawing 10 to 15amps of power - if the AC is on at the same time, and then you run the microwave, you can see that the total requirement might be over 30amps.

of course, we many times forget about other 'fantom' power draws, such as a computer plugged in and charging, phone and tablet devices charging, lights, Fans, TVs on, Satellite receivers ON, and the coach's own battery Charger in process, etc.... you get the picture.

Usually the heat of the summer(running the AC) is the main time for power issues like this since it is the primary culprit when tripping breakers. If you have propane options, such as the propane water heater, or the propane fridge, then you can certainly keep those on propane and have much more power for everything else...

if you have an Inverter/Charger panel, you may also have a 'SHORE MAX' button or setting that you can modify when parked and on shore power. If you lower it to 5a or 10a instead of 20 or 30, the Charger will then use only that lower amount of amperage to maintain/charge the batteries, leaving much more for everything else. The only real reason to have it at a higher setting is if you really NEED the batteries to be charged quickly, such as when off-grid using the Generator... but under normal circumstances, even at 5amps, the batteries can be recharged during an overnight stay while on 30a shore power.
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Old 04-16-2017, 02:47 PM   #7
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sorry, got Rvin Doc and Felices 30.2 confused.
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Old 05-26-2017, 05:14 PM   #8
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Model: ACE 29.4 (2016)
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Check your outside outlet to make sure it is properly sealed. Mine was not and sometimes drips of moisture would get in and create a short that would trip the breaker.
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Old 05-26-2017, 07:17 PM   #9
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You should be able to run your AC & the refrigerator on 30 amps. I'm not convinced the parks power supply was not at fault. Did anyone measure voltage. Under high demand, the voltage could have dropped which would mean everything would draw more amps, which could be part or, or all of the problem. As far as your doggie, we leave ours in with the AC on, but use a Temp Stick to monitor temps. If it goes over a set point it will text and email me, so we can hightail it back to the motor home. Its available at Amazon if you are interested. Its certainly makes me feel better when our pup is in there and we are not right there with her.
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