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Old 07-08-2016, 02:07 PM   #1
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Southwind A/C Question

Afternoon all. I recently purchased a '79 Southwind and it has dual roof a/c units. We've come to realize they will both work on the 5.0 Onan generator, but only the forward unit will work when the rig is plugged in. Is that normal or do I have something weird going on? Thanks in advance!

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Old 07-08-2016, 02:21 PM   #2
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You probably have a 30 amp service. With that, 2 ACs can not run.

Your generator has a 30 amp breaker for most loads in the MH, and a separate 15 or 20 amp breaker for the second AC.

While on shore power, there may be a selector switch to choose which AC you want to run.

With a little rewiring, you could get them both going by setting up a second power cord, with its own transfer switch or converting to 50 amp service.

Converting to 50 amps would need a replacement transfer switch and a new heavy power cord, along with some rewiring. Even doing that, you couldn't run both at a 30 amp park.

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Old 07-08-2016, 02:30 PM   #3
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Later model Fleetwoods with more energy efficient units and an EMS to shed loads can run both. I've heard as stated above how others have run a separate line to the 15 amp plug on the pole.

Cliff,Tallulah and Buddy ( 1999-2012 )
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Old 07-08-2016, 02:44 PM   #4
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That completely makes sense, as the second a/c is on its own breaker. I figured it was built that way, but with the age and years of being tinkered with I wanted to ensure it was set up correctly. Thanks so much for the quick replies.
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