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Old 05-18-2021, 12:01 PM   #1
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Join Date: Sep 2019
Location: Jacksonville Florida
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A/C problems

Thanks to all who replied to my last post. It was very helpful. After all the resets and things we tried it boils down to this: we have a 2015 Newmar Ventana 4369 with 3 AC's and an onan 8000 generator. When leaving the last camp ground I pulled the electrical out of the pedestal without turning off the breaker if that matters also I do have a surge protector. The middle and rear AC's work fine on the generator. Turned those off, waited 5 minutes and tried the front AC. Would not come on. Generator sounds like its taking a load and the power control system panel shows the amps as if the unit was on but it doesn't run. Any thoughts?
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Old 05-19-2021, 10:53 AM   #2
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Location: Panama City, Florida
Posts: 173
Maybe the fan motor in that unit is not coming on so you think the whole unit is not coming on? If it's pulling amperage, something is running somewhere. Just guessing here, but that's where I would start.
Pat & Peg (and our golden retrievers)
2016 London Aire 4519
2018 F-150
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Old 05-19-2021, 11:13 AM   #3
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Don't know your rig but running amps for 2 A/Cs [not counting start-up spike] is approaching 30 amps on one leg ....your 8000QD only put out 35-40 amps per leg.... if your rig has an electrical mgt system, then two AC's plus anything else on that leg might trigger power shedding of one AC by your EMS ....just a guess????
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Old 05-19-2021, 05:19 PM   #4
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Posts: 485
Have you tried turning off the two working AC units at the thermostat? That will eliminate the electrical load exceeding the generator capacity.

- Richard
Richard & Denise
2019 VTDP 4310 K2
2019 Expedition, Nighthawk & AF1
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Old 05-19-2021, 06:31 PM   #5
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LA Gulf Coast Campers
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You could be drawing amps from the electric water heaters, make sure they are off. You could also draw amp while charging your batteries.

What is the temperature setting for zone 1? Make sure the zone 1 thermostat is set lower than the actual temp otherwise that ac will not. Turn on.
Ken & Diane
2014 Newmar Ventana 4369 All Electric 400HP
2018 Jeep Grand Cherokee Limited
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ems, front ac not working, problem, problems

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