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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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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, 05:03 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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Old 11-08-2016, 05:38 AM   #11
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Bad wire crimps on the inverter or batteries? Loose or dirty connections? I would perform voltage drop testing on all cables and across the inverter fuse. If inverter is on the battery disconnect, I'd do voltage drop test across it.

Could also be an issue with the inverter itself.


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Old 11-08-2016, 10:16 AM   #12
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I didn't even know invertor had a fan. I never hear it. What I hear occasionally, is the fan the dealer installed by the refrigerator. It is supposed to go on when the area his 100 degrees to keep compressor cool. Sometimes I hear a low humming at the bottom of refer and I assume thats the fan they installed.
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Old 11-08-2016, 03:56 PM   #13
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Bethcb, I've had two of the Xantrex 1000w inverters (one in my Jayco and 1 in an SOB)
Both fans are annoyingly loud and they are always turning on.
I can hear it in the bedroom easily.
I even sent one back to Xantrex and they said that's the way it is.

It would be odd that the 1800w would have a quieter fan. If it does then I am annoyed.
I'm pretty sure they mount them under the bedroom floor in the Pinnacle too...?
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Old 11-08-2016, 04:56 PM   #14
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I think my invertor is in the storage compartment in front of trailer. Our bathroom is right above it. I honestly have never heard it, but would it be going on when on shore power? Haven't dry camped w it yet. Its only been running when we are traveling.
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Old 11-08-2016, 05:24 PM   #15
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Yep it goes on if your on shore power, battery power, whether the remote button is on or off, no matter if it's 100 degrees or 30 degrees outside even if both basement doors are open with a stiff breeze blowing through.

There is no low speed, or high speed. Just LOUD speed!
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Old 12-09-2016, 07:30 PM   #16
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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. 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?


Larry when I talked to the invertor manufacturer about mine, he told
me my 1000 watt invertor may NOT be big enough for residential refrigerators.


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Old 12-09-2016, 10:42 PM   #17
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Jasum

The inverter relates to ramp up time on the motor for.refer and the inverter cannot sustain the power output needed for long enough time thus most of the issues go away using the 1800 at least most of us with the samsung
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Old 12-10-2016, 08:43 AM   #18
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We no longer have issues w 1800 watt invertor. 1000 watt was not adequate. Not sure why Jayco installs 1000 watt as default.
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Old 12-10-2016, 08:54 AM   #19
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Not sure as to why Jayco does not install Pure Sine wave inverters for the fridge circuit. The electric motors run a lot cooler and more efficiently on the pure sine wave power.
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