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Old 08-13-2022, 09:21 PM   #1
Junior Member
Brand: Thor Motor Coach
State: Texas
Posts: 3
THOR #27680
Running 3 ac

Recently bought a 2011 Thor 42rq. When it's plugged into 50 amp service can you run all three ACs?

Second, have you ever heard of someone replacing a 8k generator on a 42rq with a 10k generator.

Finally, the driver side window by the driver is cloudy, is there anyway to fix it?


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Old 08-13-2022, 10:36 PM   #2
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16ACE27's Avatar
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 13,293
THOR #7035
No problem with running 3 A/Cs on 50 amp SP. That's 240 VAC service so essentially 100 amps at 120 VAC.

8KW generator is 67 amps at 120 VAC. That's 3A/Cs with power left over. Never heard of an 8 to 10 KW generator swap out.
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad
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Old 08-13-2022, 10:39 PM   #3
ProsperTrail's Avatar
Brand: Thor Motor Coach
Model: Hurrican 34J
State: Texas
Posts: 60
THOR #4107
50 Amps should be enough for 3 Ac Units

I'm sure 50Amps is enough to run all 3 A/C units. but probably not a good idea on a 30 Amp feed.

I'll pass on the other 2 questions
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Old 08-13-2022, 11:40 PM   #4
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Brand: Thor Motor Coach
Model: Tuscany 42GX
State: Missouri
Posts: 1,152
THOR #9178
We try to avoid boondocking in extremely hot weather however a few times we have been in 100 degrees plus

I run the generator and all three AC's plus whatever we need until it cools.

The EMS will load shed if we exceed the generator however, we have a 10k and the EMS works extremely well.

No issues of course when on 50-amp shore power other than the extra charge as we tend to find campgrounds that charge for KW's above the daily allotted rate
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