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PostPosted: Sat Aug 12, 2017 8:58 pm 
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Joined: Mon Jul 18, 2016 4:43 am
Posts: 11
OR Year: 2013
OR Model: R398RLS
Member ID: ORF-10231
My residential fridge in my 5th wheel is shutting down after about 4-5 hours of highway traveling. Inverter is fine and both batteries are new. Is there a switch or fuse in the truck that could possibly be bad? I thought that as long as you were hooked up with bed plug and truck was running it kept your batteries charged in the fifth wheel. What am I missing here and what do I need to check? Thanks


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PostPosted: Sat Aug 12, 2017 10:22 pm 
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Joined: Sat Jan 25, 2014 10:25 am
Posts: 89
OR Year: 2017
OR Model: 3x349RLS
Member ID: ORF-4435
Check the voltage on the battery that runs the refrigerator, I think you will find that it has a low voltage.

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2017 OR 3X349RLS
2016 Ram 3500 SRW
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PostPosted: Sat Aug 12, 2017 11:20 pm 
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Joined: Sun May 21, 2017 11:47 am
Posts: 52
OR Year: 2017
OR Model: 374BHS
Member ID: ORF-12740
Most likely that your battery disconnect isn't set right and your secondary battery isn't getting charged by your tow vehicle and dying. As stated above I'll bet your second battery is stone cold dead when this happens.


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PostPosted: Sun Aug 13, 2017 10:57 am 
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Screwby wrote:
Most likely that your battery disconnect isn't set right and your secondary battery isn't getting charged by your tow vehicle and dying. As stated above I'll bet your second battery is stone cold dead when this happens.

Newbie here so please be patient. There is a battery switch in my basement compartment. I constantly leave this switch on all the time. Is this correct way to do it? You mention battery disconnect switch isn't set right. Not sure I know what you mean. Please explain how to set it and where is it located. Thanks


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PostPosted: Sun Aug 13, 2017 1:58 pm 
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Joined: Wed Dec 14, 2011 11:31 pm
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OR Year: 2015
OR Model: 3x349rls
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Check battery combiner switch near your inverter. Turn all 3 knobs counter clockwise then set the first knob, connect voltage, to 13.0 volts, then set second knob, low voltage disconnect, to 12.5 volts and then set 3rd knob, high voltage disconnect, to 14.8 volts. If these aren't set to these settings your batteries will not receive the charge it needs.Dave

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PostPosted: Sun Aug 13, 2017 3:57 pm 
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Joined: Mon Jul 18, 2016 4:43 am
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OR Year: 2013
OR Model: R398RLS
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jarhead wrote:
Check battery combiner switch near your inverter. Turn all 3 knobs counter clockwise then set the first knob, connect voltage, to 13.0 volts, then set second knob, low voltage disconnect, to 12.5 volts and then set 3rd knob, high voltage disconnect, to 14.8 volts. If these aren't set to these settings your batteries will not receive the charge it needs.Dave

OK, will do. Many thanks.


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PostPosted: Sun Aug 13, 2017 10:15 pm 
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Joined: Sat Jan 25, 2014 10:25 am
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OR Year: 2017
OR Model: 3x349RLS
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Once you set the smart battery combiner per Mark's instructions your battery should start charging if you are on shore power. After charging the battery for 24 hours check the battery voltage. Before checking the battery voltage turn the disconnect switch to off. If the battery has recovered the voltage should be around 12.5. Remember to turn the disconnect switch back on.

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2016 Ram 3500 SRW
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Reese 16k Hitch


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PostPosted: Sun Aug 20, 2017 10:41 pm 
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Joined: Thu Apr 07, 2016 10:36 pm
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Location: Mt. Vernon, Indiana
OR Year: 2016
OR Model: 323RLS
Member ID: ORF-9291
Go through the following list:

1. Make sure both batteries are charged and hold the charge by using automobile charger and/or voltage tester. Inverter will not work if main battery has low charge
2. Make sure frig is plugged into 110 VAC
3. Make sure inverter is plugged into 110 VAC
4. Make sure inverter is turned on.
5. Make sure all battery wire connections are tight, included ground wires connected to trailer frame.
6. Check all trailer fuses including "T" fuse on trailer frame
7. Check power wire (red) on 7 pin connector from truck with tester. Truck power wire fuse may be blown.
8. Check settings on Smart Battery Combiner and adjust if not on proper settings. (See schematic)
9. Check all battery wiring by comparing it to the Highland Ridge schematic. Change if different from supplied wiring diagram.
download/file.php?id=11661


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