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Old 07-15-2020, 12:44 AM   #21
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Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
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THOR #12751
Hey Martinez........

Do you have any issues when you are running the generator vs using shore power?

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Old 07-15-2020, 12:50 AM   #22
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Originally Posted by Martinez View Post
I have a 2017 Thor Outlaw Toy Hauler 29h. When I'm using shore power I can only use 1 a.c. unit if I want to use any appliance such as microwave or coffee maker. OR I have to shut down both a.c. units. Otherwise the GFI trips in the bathroom or the breaker at the pole (camping) Shouldn't I be able to keep both a.c. units on at all times even if I want to make a cup of coffee? This has happened at the last 3 campsites. I took it in for service and they say nothing is wrong.
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Theoretically, the OP should be able to run his 13,500 BTU and 5000 BTU A/C on 30A. I say this because Bob D and I both had the same coach and we never had an issue running both A/C's on 30A.

Now the OP said he has had the issue at multiple sites so the chances of him having bad power at all of the sites is slim. Possible... but unlikely.

I have a hardwired Progressive EMS so I always know the voltage and current of my 50A service but apparently the OP is not using an EMS so I think it is still worth him checking for poor connections given the issue has happened at a few different sites.

There have been enough reports and pictures of shoddy wiring on this forum that it would not be a surprise if he also has a poor wiring connection somewhere. Poor connections can lead to an over-current situation if the full gauge of the intended wiring is not making proper contact. A poor connection from improperly installed wire nuts would be like using a 12AWG wire when the service really called for 6AWG. That could cause a breaker to trip and it could also cause heat with melting or even fire in extreme cases.

Read the OP again. The complaint was NOT that he couldn't run both A/Cs at the same time. The complaint was that he couldn't run both A/Cs AND another major current drawing item such as a coffee maker or microwave. The answer is: a 30 amp coach cannot run 3 major current appliances at the same time as I explained in post #3.

There is no problem with his coach; like all 30 amp coaches you have to power manage.
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Old 07-15-2020, 01:15 AM   #23
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THOR #12751
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Originally Posted by 16ACE27 View Post
Read the OP again. The complaint was NOT that he couldn't run both A/Cs at the same time. The complaint was that he couldn't run both A/Cs AND another major current drawing item such as a coffee maker or microwave. The answer is: a 30 amp coach cannot run 3 major current appliances at the same time as I explained in post #3.

There is no problem with his coach; like all 30 amp coaches you have to power manage.
Sorry.... I should have stated.... I was able to run the coffee maker when I had both A/C's running.

The 5000 BTU A/C in the Outlaw does not draw that much current... about 5 - 7 amps depending on the setting. Heck I was able to run it off my Inverter with my small solar setup and the crappy stock house batteries for hours. I also know it is on a 15A breaker.

The 13,500 BTU A/C could be pulling 12 - 16 amps depending on how hard it is running (that is what I see with mine). This one is on a 20A breaker.

If he had both A/C's running and they were max'ed out..... he should still have about 7 amps to run a coffee maker or maybe even the microwave depending on its specs.

Now granted.... he could be using a pretty high end coffee maker but the ones I usually see in RV's are probably drawing 5 - 6 amps. Ours draws about 5 amps. You also have to factor in the Converter and what it is doing at that moment in time.

So I guess of you add up all the math and what if's... then he could be over drawn and that's his issue. But then again.... maybe not. All I know is I never had an issue tripping the breaker at the pedestal when running both A/C's and making coffee.
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Old 07-15-2020, 04:03 PM   #24
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Brand: Thor Motor Coach
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THOR #12751
Power trip

I just went out to my Magnitude and kicked in both 13,500 BTU A/C units. The coach temp was 82 in the back and 80 in the front. After the initial start-up, both are running at 11 amps.

Letís assume the OPís 13,500 BTU A/C is running 12A and the 5000 BTU is at 6A. Letís assume the Converter is 5A because it is charging the house batteries and the fridge is cold and drawing 1A.

He should have enough left over to make a cup of coffee with a 5A coffee maker. Albeit he is on the ragged edge.
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