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How do I diagnose the problem with a Dometic RML 8555 refrigerator that won't run on propane or DC?

The Dometic RML 8555 refrigerator in my RV works fine on AC, but isn't working on propane or DC. I want to be sure that the problem is the control board before I spend several hundred dollars for one. check back control board see if voltage to gas valve if on propane if on 12 volt electric see if voltage to heater element

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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scott

  • 532 Answers

SOURCE: RV refrigerator works fine on AC power. Burns for 30 seconds on gas power then shuts off.

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.

Posted on May 10, 2009

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Anonymous

  • 40 Answers

SOURCE: the dometic roof ac humms when rv is on 110 ac

not likely but possible. if they already had one bad board what's to say their production methods have changed since they made your last bad board. I have just had 6 bad compressors from this chinese company danfoss in one month! for only 2 freezers i have installed 3 bad compressors in each! nobody takes pride in production anymore they want the stuff to break.

Posted on Oct 10, 2009

miket756

Michael Thorpe

  • 2702 Answers

SOURCE: have dometic propane fridge in rv and works fine when flat but no

well if you find one let me know???
if it only works when upright start carrying some jacks with you then if its leaning over jack that side up a bit till its flat!

Posted on Oct 23, 2009

kel1guy2002

Kelly

  • 3740 Answers

SOURCE: Dometic RM3801. Propane ignition failure.

The older units has a 3 VDC glow coil the newer units have a 12VDC igniter.

Fromwhat your described above the next paragragh is your ignition system.

The igniter control voltages in the newer SPARK type igniters are (+) = 12VDC, (L)= high voltage lead (Spark plug voltage! I.e ruin your meter type voltage), (-)= Ground L is the lead that passes the HV spark from the control unit to the ignitor plate. The L lead should pass one heck of a hit if is workng correctly.
If not look at the HV lead to see if it is grounding out somewhere.

If the gas safety valve is not sensing gas pressure... you will not have 12VDC to the + terminal of the ignition moudule.

With the gas on and you have 12VDC at the ignition module + terminal then most likely the ignition module is bad.


Kelly


Posted on Apr 17, 2010

motor1258

Mike Butler

  • 6674 Answers

SOURCE: 3 way dometic RV fridge RM2612 won't work on propane or 12 V

Check any fuses/circuit breakers in harness from battery. That battery should supply 12 volts dc to fridge lugs/terminals at bottom of fridge on outside behind vent.
If battery is good and hooked up properly but no 12 volts to fridge, then you will have to trace back to battery for broken /bad wire. If you want to test quickly, just run 2 jumper wires from battery to those 2 lugs marked + and - Battery + to + (pos)at fridge, and - battery to -Neg at fridge. That should allow you to run it on propane or 12 volt. Remember, running it on 12 volts will kill that battery pretty quick, unless it's being charged. When you are plugged in, the converter supplies the 12 volts to your fridge, as well as should be charging your battery.

Posted on Jun 22, 2010

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1 Answer

110 volts works but 12 volt does nothing, checked voltage 13.6 v. Any suggestions. Thanks.


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www.nationalserroscotty.org/resources/dometic-service-manual.pdf
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Check any fuses/circuit breakers in harness from battery. That battery should supply 12 volts dc to fridge lugs/terminals at bottom of fridge on outside behind vent.
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Dometic Voluntarily Expands Refrigerator Recall

Dometic recently expanded its recall on a population of two-door refrigerators. The original recall included some two-door refrigerators manufactured between April 1997 and May 2003. The new recall focuses on models manufactured between June 2003 and September 2006.

To see if your unit is on the recall list & what to do, try the link below.
If your unit is on the list, DO NOT run your refrigerator on propane until the kit is installed

http://www2.dometicusa.com/recall.php

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I have a dometic rv fridge. it works on the 120 v but not on propane. acutually the freezer works and the fridge is warm, when the propane is running the fridge


I'm not sure what the problem may be but you could try calling All Seasons RV Appliance Parts & Service. There number is 1-800-344-0673 they have helped me in the past. That and there tech calls are free so it wouldn't hurt to give them a call.

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Here is the website. If you need help in understanding let me know

http://www.campingworld.com/shopping/item/dometic-rm2193-compact-refrigerator/13473

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