Not cold when using gas - Fiberglass RV


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Old 07-03-2011, 10:11 AM   #1
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Not cold when using gas

Just came out of the Idaho mountains (fishing was good). The first 6 days the Dometic RM2193 frige worked great on gas, but the last 3 did not work at all. The gas burner would light and stay on,the flue would get hot the and the tubes in the rear would get hot like normal but the frige would not cool down. Got home parked the egg and plugged it in, the frige works on 120 volt (testing now if it works on 12 volt) tried it on gas twice but not working. Does anyone have any ideas on what to try before removing the frige and do a clean job to try and get it working again ?
THANKS
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Old 07-03-2011, 10:29 AM   #2
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Hi Dave ,
You could have a dirty burner or the orfice. Have you had your gas pressure tested lately? It could be low ,also check that no insulation or anything has fallen down in the back of the fridge and blocking the venting, but if it working on 110 v venting should not be the problem .

Hope this helps
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Old 07-03-2011, 11:00 AM   #3
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Originally Posted by D Tharp View Post
Just came out of the Idaho mountains (fishing was good). The first 6 days the Dometic RM2193 frige worked great on gas, but the last 3 did not work at all. The gas burner would light and stay on,the flue would get hot the and the tubes in the rear would get hot like normal but the frige would not cool down. Got home parked the egg and plugged it in, the frige works on 120 volt (testing now if it works on 12 volt) tried it on gas twice but not working. Does anyone have any ideas on what to try before removing the frige and do a clean job to try and get it working again ?
THANKS
Hi Dave, we have the same fridge but I haven't done a cleaning yet. I'm curious to see what you find. Our last rig had a Norcold that I had to clean yearly. The first time took me a couple of hours and after that half hour tops. I would look at the orifice with a microscope and it always looked fine. It was the burner itself that would be the problem. Carbon build up would clog where the flames come out reducing the heat output. I would use a brass brush to clean it although a regular wire brush is probably ok. Afterwards the fridge would work much better.

Checked the manual and the instructions for cleaning look pretty straight forward. If you don't have a manual you can download one from the Dometic site. Let's us know what you find. Raz
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Old 07-03-2011, 11:28 AM   #4
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You can download the manual from the Document Center: Fiberglass RV - Document Center - Dometic_Refr_Manual_RM2191_2193

Here's the service manual, although I don't know if it applies to the 2193:
Fiberglass RV - Document Center - Dometic_Refr_ServiceManual-1
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Old 07-03-2011, 12:58 PM   #5
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Hope

I had hope to not pull the frig but I will do it and report back.
The 12 volt test worked, so it must be something with the burner.
I did test the frig with two different tanks of propane so I hope that a good clen will solve the problem. Thanks
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Old 07-03-2011, 02:13 PM   #6
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I may be wrong put I don't think you need to pull the fridge to clean the burner. There should be easy access from the back. Check the manual first.
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Old 07-04-2011, 12:10 PM   #7
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Cold yessss !

Yesterday used compressed air (low pressure) to clean the back of the frig, was able to get some air up the flue and out came a dead large moth. Left the frig on propane for the night and all seems to be OK.
Thanks for all the help. At the end of the season will pull the frig a do a good cleaning on it.
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Old 07-04-2011, 05:25 PM   #8
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Yesterday used compressed air (low pressure) to clean the back of the frig, was able to get some air up the flue and out came a dead large moth. Left the frig on propane for the night and all seems to be OK.
Thanks for all the help. At the end of the season will pull the frig a do a good cleaning on it.
I bet that one was well done! Thanks for letting us know. Raz
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Old 07-05-2011, 12:55 PM   #9
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Still working after 20 hours may have lucked out
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Old 08-28-2011, 04:20 PM   #10
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No Luck

I did not luck out. Last fishing trip (last week) frig worked ok on 110 volt, when we reached the ST JOE river start on propane no cold. So I am hoping for ideas before I pull it and do a good cleaning. Leaving for a blues festival in a week and hope to get it working.
Thanks DAVE
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Old 08-28-2011, 04:55 PM   #11
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Hey Dave, you might have to check on that model if you have a dual themostat or are they separate. If they are dual ,I would look at gas pressure if after a good cleaning it still doesn't work.

Hope this helps
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Old 08-28-2011, 07:06 PM   #12
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Turn upside down

Has anyone tried to turn the frig upside down when you have it out. I thought I read where this can help. I have it out and cleaned it very well, it is on 110 volts and seems to be working OK. True test when i put it back in. So do I let it side upside down foe awhile before I put it back in?
Also the knob for the 110 is 1 the coldest setting or 5 ?
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Old 08-28-2011, 07:28 PM   #13
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Dave, the ole "skake and bake" on these 3-ways work for some, not so for others. But what do you have to lose to recover an ole frig, other than some time? I'm cheap, I'd try it before replacement. Take it out, turn upside down about every 24 hours or so and put it back in place after five days or so. Hopefully it will work splendidly
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Old 08-28-2011, 08:35 PM   #14
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Upside down

I am with you Donna, will let it cool of and let sit upside down for a day. Yes what do I have to loose. But the price of a new one is a lot.
I am retired so maybe I will pull every few months and do it again.
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