Dometic rv fridge runs fine on elec, lights on gas but in one min shuts down. Dometic RV S1621 fridge runs fine with elec, when start gas operation. The burner runs for about 30 seconds then shuts off. There must be some type of flame sencor that is not working. when the flame is not senced, the unit shuts off.

RV Refrigerator Stop Working? - RVing - Fun Times Guide

rv-roadtrips.thefuntimesguide.com/2009/09/rv_refrigerator.php

If your refrigerator works on gas, but won't work on electric, you may have a burned out.... Cirtis, We are camping in Montana and our dometic refrigerator decided to stop ......Won't know until you can confirm you have proper voltage to the fridge. ... If you have confirmed both 12 vdc and 110 vac power at the fridge, I would ...

[PDF]Dometic Manual Refrigerator Diagnostic Service Manual

www.nationalserroscotty.org/resources/dometic-service-manual.pdf

Dometic Manual Refrigerators. ... 110 Volt Plug. 2. .... This is Dometic's Manual Refrigeration Diagnosis and Troubleshooting program. In this ... we will discuss the way an absorption cooling unit operates, and the ... gas, 120 volts AC and 12 volts DC .....In this condition we are still boiling ammonia but have no hydrogen for.

Dometic Fridge problems - RV mechanic

use make and model number with brand and look in manual for it there should be a parts replacement list with phone number

Check to see if you have a switch for storage, on, off etc. usually between doors, or near top right corner of fridge compartment. It may be in wrong position.

Check your 12 volt ground
Check the fuses in the back under the cover
Other than that sound to be a bad control board

First thing to check is that the control switches are in the proper position, since some RV fridges require a particular placement for the fridge to operate on different power souces.

Check your owner's manual for troubleshooting steps for your specific fridge, beyond that, here's link to a site that provides a step-by-step troubleshooting guide complete with active links for each potential issue.

http://gasrefrigeration.net/works_on_gas_but_does_not_work_o.htm

Here's a copy of the manual for your fridge model that you can download and print for free, just in case you don't have yours handy.

http://gasrefrigeration.net/dom_techdata/26121_2852SM.PDF

Hope you found this very helpful and best regards!

cooling system is plugged up. i am replacing the coils.

check the thermastat

clean burner assembly with compesseed air if no fix replace electrode the spark thingy as most women say to me lol 33.50 most dealers

change out the tstat

tap on the gas valve with a wrench,not too hard but not too light about 10 times,the valve is probably sticky from not being used,re-light and see what happens.