Thread Tools Display Modes
Old 03-11-2013, 10:49 PM   #1
Join Date: Dec 2012
Posts: 37
3 way fridge

I have a tent trailer with a 3 way fridge. It works with all 3 sources. The only exception here is that I can't have it on propane while driving. It seems to blow out the pilot. I always switch to DC when driving, then switch to AC or propane once the trailer is parked. Should it be able to run on propane while driving?

am-radio is offline   Reply With Quote
Old 03-11-2013, 10:55 PM   #2
Senior Member
VinceU's Avatar
Join Date: Dec 2011
Posts: 3,502
I should, but why waste your propane? With the engine alt operating, it doesn't know its "back there".

VinceU is offline   Reply With Quote
Old 03-12-2013, 10:24 AM   #3
Head Rambler
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 4,322
Which model fridge is it?
You should be able to run on propane while driving. There may be a wind shield bent or out of place.
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is offline   Reply With Quote
Old 03-12-2013, 10:39 AM   #4
Senior Member
caper's Avatar
Join Date: Jul 2010
Posts: 1,973
Because it has a pilot light that need to be on you can not drive with propane on. The larger fridge have DSI and no pilot light.
Terry and Janet
2008 3001W Windjammer
2007 Ford F150
caper is offline   Reply With Quote
Old 03-12-2013, 10:52 AM   #5
Moderator Emeritus
MtnGuy's Avatar
Join Date: Sep 2008
Location: Shenandoah Valley
Posts: 9,274
Having previously had a 3 way fridge in a Trailmanor, here is my input:

It is a 3 way fridge for a is meant to be used on 12 volts on the road. You don't have to worry about the downsides of leaving your propane cylinders on while in transit.

There are some inherit problems that can occur, though. If your tow vehicle does not have a 12 volt isolation circuit (the isolation circuit cuts the power to the trailer when the TV switch is off) to the Bargman plug, it could run down your TV battery during extended stops. It would take some time, as both your TV battery and trailer battery would be involved.

If your TV has an isolation circuit, then you could more easily run down your trailer battery.......just a single battery instead of 2 batteries. Again, that would probably take several hours, and not usually a problem.

I installed a 30 amp blade fuse on my battery hot wire. If I were going to stop for lunch or some other long stay, I would pull the battery fuse and lay it in my truck seat. I would install the fuse when ready to travel again. Yes, the fridge would be off during that time, but those little puppies hold the cold in pretty good, so an hour or so won't make a big difference.

Chap , DW Joy, and Fur Baby Sango
2017 F350 Lariat CCSB, SRW, 4x4, 6.7 PS
2017 Grand Design Reflection 337RLS
MtnGuy is offline   Reply With Quote
Old 03-12-2013, 11:21 AM   #6
Senior Member
mjones12's Avatar
Join Date: Sep 2009
Location: Lexington, NC
Posts: 1,828
Chap is correct. I used to have a Casita with the 3-way Dometic, and I had to be careful when stopping for lunch or extended rest stops while towing on DC. It was easy with a Casita to reach in the door and just cut the fridge off until ready to roll again. Some people just preferred pulling the 7-pin plug. Either way, you have to remember to reverse the process before starting out again.
2018 Coachmen Apex 249 RBS
2010 Silverado LT 5.3 V8

The world is a great book, of which those who never stir from home
read only a page. - St. Augustine
mjones12 is online now   Reply With Quote
Old 03-12-2013, 12:57 PM   #7
Join Date: Dec 2012
Posts: 37
I'm not sure of the make or model right now. The flapper over the pilot is not bent. I put it on DC while driving and switch to propane if stopping for lunch on the way, and switch back when I start driving. Habit now. Switching is done outside. I also have no isolation switch from trailer to TV. Thanks to everyone for their advice. Advice and knowledge on here is fast and friendly.

am-radio is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:39 AM.