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Old 11-05-2015, 11:35 AM   #1
lucca53
 
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Dometic 2452 refrigerator help

Hi all I'm out of ideas works on AC great, propane lights up little green meter in middle but does not cool anything,,,,I have cleaned burner and orffice so any other ideas would be very helpful thanks
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Old 11-05-2015, 11:31 PM   #2
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What does the flame look like? Has the flu been cleaned?.
Perhaps you have a bad thermostat on the gas side. What is the gas pressure at the refer test port? Should be 11" of water column. Does the flame vary when you adjust the thermostat?


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Old 11-06-2015, 11:42 PM   #3
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Hi TG the flu has not been cleaned refer is still in trailer didn't realize that there is 2 thermostats and the flame doesn't seem to change when i turn up thermostat.I don't have a way to test pressure column which i would have to bring in to shop if i can't get this going...but now you give me another test to do i will check to se if thermostat has a short....thanks for your response....
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Old 11-07-2015, 08:20 AM   #4
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You may not see a visible change in the flame but there should be an audible change. Listen closely at the back of the refer.


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Old 11-07-2015, 10:42 AM   #5
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The thermostats is used for both gas and electric.

If the unit cools on electric the problem is in the gas section. You say the flew has been cleaned. There should be a tubulator in the flew to cause the flame to wash against the sides of the chimney. Is that still there?

Cool the unit down on electric to the lowest setting, a day or more. Once cooled have someone put it on gas while you watch the flame and then have them set it to a colder setting. You should hear the flame sound change as the thermostat calls for cooling. If not the control board or the gas valve may be the issue. Put a volt meter across the wires leading to the gas valve and do the raise thermostat test. If you see voltage as the thermostat goes up the control board is good and the gas valve may not be responding.
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Old 11-07-2015, 11:03 AM   #6
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I do not have your model of Dometic, so am offering my experience on a 2006 Dometic in a 23 foot Safari.

Although the propane or electric options both worked fine, I had an Ammonia leakage from a broken tube in the unit. It was a poorly welded tubing defect. I not only smelled it when it began to leak on a camping trip, but a yellow residue is left at the source of the leak.

Maybe this is of no help, but nobody has brought this option of your situation.
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Old 11-07-2015, 11:46 PM   #7
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Thanks Ray whoa a ammonia leak that must have been no fun,Howie the flew was not cleaned but I will try to listen to the flame so far the flame seems to be staying on at one setting there is no change no matter how i turn the heat setting...
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