View Poll Results: Is it normal for AC and Microwave to trip circuit breaker?
Yes, its just how it is. 43 57.33%
No, the dealer is full of it. 32 42.67%
Voters: 75. You may not vote on this poll

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Old 07-21-2015, 10:48 AM   #1
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Microwave and AC Trip Breaker - Dealer Says Normal?

Hello All!

Working through some painful stuff with picking up my new RV.

On our first trip, we noticed that when we are using the AC and the Microwave a circuit breaker trips. I asked the dealer about this and was told that it was normal and that I couldn't use both of them together.

Is this true? It just doesn't make sense to me.

2016 Sunseeker 3050SF

Thanks all,

Bill
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Old 07-21-2015, 10:50 AM   #2
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What size power cord do you have: 30 or 50 amps? If 30 amps, yes you have to manage your load.

See this thread.

Popping main 30 Amp breaker
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Old 07-21-2015, 10:52 AM   #3
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30 AMP. Ok, so is there a way I can work around this? Should both use the full 30 amps?

Thanks so much,

Bill
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Old 07-21-2015, 10:58 AM   #4
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Not really, you just have to manage what you use at the same time. See post #5 in link above.
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Old 07-21-2015, 10:59 AM   #5
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Originally Posted by DoctorT68 View Post
30 AMP. Ok, so is there a way I can work around this? Should both use the full 30 amps?

Thanks so much,

Bill
normal appliance amp draws

A/c uses around 12-13 amps
Microwave uses 12 - 13 amps
Converter uses 1 - 8 amps.

If your fridge was on electric 5-8 amps and your hot water heater was on on electric 9 - 13 amps it's not hard to do the math on this one.

Converter is always a constant amp draw regardless of anything else.

Your @ 24 to 26 amps with microwave and a/c Then add let's say 4 amps for converter.


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Old 07-21-2015, 11:11 AM   #6
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I can run ac and microwave at same time on my 2011 3170 30 amp either off of shore power or generator never tripped the breaker. I also only run the water heater on LP.
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Old 07-21-2015, 11:44 AM   #7
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I can run ac and microwave at same time on my 2011 3170 30 amp either off of shore power or generator never tripped the breaker. I also only run the water heater on LP.

I was going to ask him about that. Is the hot water heater on electric or lp? I usually figure on 1 hear type item along with the air conditioner. Coffee maker, hair dryer, hot water heater. Once you have more than one of those items going at the same time you'll more than likely trip your breaker or the campground breaker.
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Old 07-21-2015, 12:29 PM   #8
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Quote:
Originally Posted by DoctorT68 View Post
Hello All!

Working through some painful stuff with picking up my new RV.

On our first trip, we noticed that when we are using the AC and the Microwave a circuit breaker trips. I asked the dealer about this and was told that it was normal and that I couldn't use both of them together.

Is this true? It just doesn't make sense to me.

2016 Sunseeker 3050SF

Thanks all,

Bill
You should be able to use both together no problem but nothing much else. If the water heater kicks on electric or other large load like a coffee maker or maybe even the refrigerator if you have the large 4 door option it will likely trip. Also if you have the optional larger 15K A/C you may have more issues. Some people have converted over to 50 amp service to resolve the issues.
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Old 07-21-2015, 12:35 PM   #9
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With all this being said, I to can run a/c and microwave @ the same time.

It's possible that the cheap China breaker wfco uses is weak.

Possibly look into a replacement breaker from hardware store.


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Old 07-21-2015, 01:08 PM   #10
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Originally Posted by lbrunning View Post
I can run ac and microwave at same time on my 2011 3170 30 amp either off of shore power or generator never tripped the breaker. I also only run the water heater on LP.
X2. I Use my electric water heater, but make sure to switch it off before I fire up the microwave. I also plug my rv in the night before I leave so the batteries are topped off. If not you could be several hours at the campground drawing maximum amperage from your converter to charge your batteries and run your 12 volt accessories.
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