Thread Tools Display Modes
Old 06-17-2013, 08:26 PM   #1
Junior Member
Join Date: Jan 2013
Posts: 28
Dometic Fridge not switching to battery


I have a 2006 Rockwood 256HW. I would like to leave our fridge running while driving. We are leaving tomorrow and it is nice and cold and has been running off a 30 amp circuit from my house. However, when I unplug it from the house and switch to my truck battery I hear the gas igniter going off even though the gas is shutoff. Why doesn't it immediately switch to the battery?
I can also feel the back is not as hot as usual. Do I likely have a short somewhere? Or will it eventually switch to the battery?



mdfas is offline   Reply With Quote
Old 06-17-2013, 08:40 PM   #2
Senior Member
Join Date: Jul 2010
Location: Lower Michigan
Posts: 184
I am pretty sure gas is your only option when unplugged. If is set on auto it will attempt to ignite when it senses power loss.

2013 Salem 30KQBSS TT
Equalizer 4pt Hitch system-12K
2016 Ram 1500 Crew Cab Sport 5.7 Hemi w/8 Speed
Great Laker is offline   Reply With Quote
Old 06-17-2013, 08:48 PM   #3
Senior Member
Join Date: Mar 2008
Location: Jacksonville Florida
Posts: 1,263
It doesn't run on 12 volts. EITHER 120v OR gas. v At least that is how my Dometic fridge operates, as well as many others that I'm aware of do. Unless you have a different model than the vast majority of us has, that is how they operate. You can drive with the fridge gas on without any worries, just keep the area where the fridge vent is located on the outside away from any gas pumps! I run with the gas fridge on sometimes, depending on the length of my trip. Randy
/SIGPIC]'08 V-lite Flagstaff 30WRLS
'06 Ram 1500 QC hemi Reese dual cam sway control,
K&N series 77 intake, Hellwig helper spgs. LT tires,
Flowmaster "true duals", 380 h.p., Bilstein shocks
08flagvlite is offline   Reply With Quote
Old 06-17-2013, 08:54 PM   #4
Paul & Sheri
pwb01's Avatar
Join Date: May 2012
Location: Upstate New York
Posts: 237
I have seen 3 way refrigerators (12v being the 3rd) but not too often. My Norcold is only 120v or gas and it doesn't present a problem traveling on gas. I do stop short of a gas pump, shut it off, fill up, pull away and turn it back on. Open flame and gas vapor, not good.
2012 F150 F/X 4, 6cyl EcoBoost with Max tow pkg
2013 Rockwood 8280WS 5th wheel
2006 Sunline T1950
2004 T@B T-16
pwb01 is offline   Reply With Quote
Old 06-17-2013, 09:01 PM   #5
Senior Member
Broadway Joe's Avatar
Join Date: Oct 2011
Location: Fort Worth
Posts: 460
There are two differant type of Dometic RV refrigerators, if you have a 3 way, 110vac
propane and 12vdc model you have to manually switch over. Most are just 120vac and propane, but require 12vdc for the control circuit. Would help if you could say the model number.
Broadway Joe is online now   Reply With Quote
Old 06-17-2013, 10:11 PM   #6
Junior Member
Join Date: Jan 2013
Posts: 28
thanks for all the replies. The manual I have says LEGEN 3-Way AMES Model.
It has 3 modes DC, AC, and GAS. It is currently set to AUTO.

Sounds like if worse comes to worse I can use the propane while traveling. It has a 12 VDC Terminal block and what appears to be a 12 DC power chord plugged in.
mdfas is offline   Reply With Quote
Old 06-17-2013, 10:14 PM   #7
Junior Member
Join Date: Jan 2013
Posts: 28
Here is one quote from the manual. " ... the control system can manually be set to DC operation ( DC mode). The refrigerator controls will work down to 9.6 volt DC". Seems like while I'm cruising on the road it should use the battery, but I'm just not sure.
mdfas is offline   Reply With Quote
Old 06-17-2013, 10:19 PM   #8
Moderators' Assistant
bikendan's Avatar
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 10,184
mdfas, you posted this in the Travel Trailer/5th Wheel section and you have a popup. TT's and 5th wheels don't have 3-way fridges like popups do.
that's why some of the answers are about the typical 2-way fridges that most RV's have.

you'll get better answers in the Tent Camper/Popup section here.
Dan-Retired Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC
bikendan is online now   Reply With Quote
Old 06-17-2013, 10:32 PM   #9
Denver, CO
garbonz's Avatar
Join Date: Jan 2013
Location: Denver, CO
Posts: 1,880
You need to manually switch it to 12volt. There is a switch somewhere on the unit.
2007 Chevy 2500HD Classic LBZ Duramax/Allison (Stock)
2005 Bigfoot 1500C8.2 AWESOME
garbonz is offline   Reply With Quote
Old 06-18-2013, 04:55 AM   #10
Senior Member
fonzie's Avatar
Join Date: Sep 2010
Location: Eastern Ontario
Posts: 2,797
On the front control panel, press button #2 DC and DC light next to it (left) should light up. Then it is on DC mode.

2011 Rockwood 8319SS with ProPride 3P hitch/GoodYear Marathons/TST TPMS 507
2008 F250 Lariat CC SB 6.8L V10 4.10 axle ratio (NITTO TERRA GRAPLER G2 LT275/65R20E)
Yamaha 3000iseb generator:Progressive Ind. EMS-HW30C : Eastern Ontario
Nights Camped: 2011(21) 2012(36) 2013 (17) 2014 (18) 2015 (18) 2016 (36)
fonzie is online now   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.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:51 PM.