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Old 09-05-2016, 06:22 PM   #1
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Frig on battery issues

I have a 2016 Northpoint with a residential frig. It works fine on shore power, but when using the batteries and inverter, it only last a few minutes before the voltage drops and the frig goes off. Voltage goes back up and the frig will come back on for a short time and go off again. This can't be good for the compressor going on and off. Having it hooked up to the truck for charging doesn't seem to help. Any thoughts what I might check before I take it back to the dealer?
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Old 09-05-2016, 06:37 PM   #2
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Your fridge is prob trying to pull to many amps and the battery can't keep up. Not sure if your rv came with it or can power it, you didn't say if it was a new rv or new to you or a new issue and it worked before. From the sounds of your description, a bigger battery or bigger inverter might be needed.
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Old 09-05-2016, 06:50 PM   #3
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Quote:
Originally Posted by LarryP View Post
I have a 2016 Northpoint with a residential frig. It works fine on shore power, but when using the batteries and inverter, it only last a few minutes before the voltage drops and the frig goes off.
What size inverter are you using? 1000Watts? 600Watts?????

Battery(s) fully charged?

What is the Amp Hour (Ah) rating on your BATTER(s)? How many batteries do you have? Have you killed or drained your battery(s) before (below 10.5VDC)? How many times? How far is the fridge from the inverter? What size wire do you have between the inverter and the battery(s).

All important information...

You may want to purchase a Kill-A-Watt meter and run the fridge through it to see how much power it uses on 110VAC and convert those numbers to 12VDC power required to run the fridge.
Don
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Old 09-05-2016, 07:02 PM   #4
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Could very easily be a bad battery.
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Old 09-05-2016, 07:13 PM   #5
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Originally Posted by LarryP View Post
I have a 2016 Northpoint with a residential frig. It works fine on shore power, but when using the batteries and inverter, it only last a few minutes before the voltage drops and the frig goes off. Voltage goes back up and the frig will come back on for a short time and go off again. This can't be good for the compressor going on and off. Having it hooked up to the truck for charging doesn't seem to help. Any thoughts what I might check before I take it back to the dealer?
Additional Information: Camper is only 4 months old. There are two RV/Marine batteries. They check out good. Inverter is a Xantrex XM1000. I'm assuming it's 1000 watts.
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Old 09-05-2016, 07:17 PM   #6
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You're gonna need a bigger battery bank if you want to run a res fridge on batteries!
It's kinda not practical.
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Old 09-05-2016, 07:57 PM   #7
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Before the fridge goes off, the inverter should give a low voltage error. Or at least the error and the fridge off at the same time.
What does the voltage on the inverter remote read before the fridge shuts off?

I have let my batteries get pretty low but the fridge has yet to shut off, and I've never had a low voltage error on the inverter either.

Does it do this every time you switch to battery?
The Fridgidaire will go into defrost mode occasionally and suck approximately 50a DC during the cycle. The manual says the cycle lasts about 30 mins. That's a battery killer right there.

I have 520 watts of solar and can make it pretty much 3 days with two Trojan 6 volts.
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Old 09-05-2016, 07:58 PM   #8
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Check the output from the inverter. Ours was not wired properly from the factory. If all checks out and the batteries are good...sounds like a problem with the frig.
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Old 09-06-2016, 11:31 AM   #9
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We have had refrigerator issues all summer on 2015 Pinnacle. Samsung looked at the refrigerator after dealer insisted it was a refer problem. They found that it was mounted to the slide w metal plates covering the vents in the front. Dealer now is remounting the refrigerator and placing a small fan to keep compressor cool. We have also insisted that the 1000 watt invertor be replaced w an 1800 watt invertor.
We have solar on the roof w 4 6volt batteries to keep the refrigerator going for a few days in dry camping situations.
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Old 11-08-2016, 04:03 AM   #10
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Inverter

BETH does your inverter fan run even when not using it? Ours goes on and off even when it's cool out ,they did put in the 1800 but the small one did the same.
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