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Old 06-24-2013, 10:19 PM   #1
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Refrigerator on while towing

While towing our travel trailer does the fridge run off the battery of the truck or does the LP need to be on to keep it cold and running?
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Old 06-24-2013, 10:26 PM   #2
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Depends on how both rigs are wired AND if the refer is a three way and will run on 12 volts. Even a two way (gas and 120) needs 12 volt for the controls.

Need more info like make and model and whether 3 way (gas, 12v or 120v) or the much more normal now 2 way (gas, 120v)
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Old 06-24-2013, 10:28 PM   #3
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Originally Posted by dolphincraze View Post
While towing our travel trailer does the fridge run off the battery of the truck or does the LP need to be on to keep it cold and running?
I believe that it will require LP to run. Probably draws too much power to run off the on board batteries or your tow vehicle. That is how mine is set up anyway. If you have an on-board generator that is a different story. Although I have heard of three way fridges, which I assume means either LP, 120v, or 12 volt.
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Old 06-24-2013, 10:35 PM   #4
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As Mr. D says depends on a lot of things , most newer fridges have not got a 12volt element to cool the fridge, so it has to be on propane to cool while you are driving. Remember to turn the fridge off if you stop for fuel.
Age and model of your fridge and RV, would help you get better answers.
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Old 06-24-2013, 10:42 PM   #5
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Its a 2013 Radiance by Viewfinder. Not sure of the fridge model. We are on the road now and I cant look. There was no owners Manuel for the fridge.
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Old 06-24-2013, 11:09 PM   #6
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We finally got our old fridge working on LPG so I leave it alone. We leave it running while on the road, the only time we turn it off is for ferry crossings where propane off is mandatory. It is a nuisance to relight.
We have a fiver, the fridge is far enough from the truck filler that I don't worry about it.
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Old 06-24-2013, 11:49 PM   #7
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Several posts have been removed from this thread, as they are not in keeping with Community Rules. Please keep on topic and AVOID PERSONAL ATTACKS. Thanks.
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Old 06-24-2013, 11:58 PM   #8
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Several posts have been removed from this thread, as they are not in keeping with Community Rules. Please keep on topic and AVOID PERSONAL ATTACKS. Thanks.
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Old 06-25-2013, 12:05 AM   #9
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Our last camper was a 5th wheel. We kept the fridge on LP when traveling. My understanding is the 12 volts came from the battery in the camper. Then the truck kept the battery charged in the camper. We did this all the time. Longest trip was from PA to Yellowstone. Fridge was cold the entire time.
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Old 06-25-2013, 12:21 AM   #10
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All five trailers we had ran on LP and we had them on the whole time we were traveling.

When we plugged into shore power they would automatically switch over to 110 volts.

You should set you refrigerator to Automatic if you want it to determine which power source is used.

The 12 volt battery on the trailer will provide the necessary 12 volts to the control circuit in the refrigerator and must be available. In other words, don't turn off your trailer battery if that is even an option.
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Old 06-25-2013, 10:42 AM   #11
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Mine works the same way. 14 years old and still works very well.
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Old 06-25-2013, 12:44 PM   #12
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Our pop up had a three way fridge. I'd run it on 110 when we were plugged in, then on 12 volt while towing. If we were going somewhere to dry camp, I'd just run it on propane while towing and dry camping.

Our new travel trailer only works on 110 or propane. While travelling, I run it on propane. Most of the time while camping, I'll just leave it on propane as it doesn't use much.
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Old 06-25-2013, 12:45 PM   #13
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The few 3-way frigs (propane, 120VAC and 12 VDC) that you will see are the smaller ones.

To run most of the RV frigs on the road, you need a generator for 120 VAC operation or 12 VDC and propane for non-electric operation.

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Old 09-26-2013, 07:44 AM   #14
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I appreciate the information regarding turning off the propane while traveling. I pulled a 36 foot 5th wheel and never turned off the propane. This may be as a result of never seeing anything directing me to turn it off. Never went through tunnels with it. Only up and down interstate 95 from Northern Va.
I always left it on automatic when loaded. I would plug it in the night before we were loading the fridge and it stays cold between the road and power at the CG to home again. Worked great. Now that we are picking up our RV tomorrow, I expect during the 3 plus hour orientation the dealer said would take to cover all systems, I will learn more about this unit which has a full size residential fridge and freezer. Let you know what I find out. If different than what has been posted.
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