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Old 01-28-2016, 08:03 PM   #1
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Dometic 1292, refrig no workee, freezer OK

We experienced some kind of electrical problem that took out the microwave, washer, and the refrigerator. Changed the main power cord, no more problem there. Freezer seems to work OK on propane. Refrig fails on electrical, according to the eye brow panel. I have checked the two fuses on the printed circuit breaker on the back of the unit, they are OK. I really can't tell if the refrig is working on propane, seems to work sometimes, then at other times seems to not get cool enough.
Simple problems I can handle - any one have any insight to what might be the problem?
Thanks for any help.
Catfish
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Old 01-28-2016, 08:38 PM   #2
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Was your electrical problem a power surge? Perhaps one of the electric elements got burned out in a surge. If you check with a ohmmeter, there should be resistance in the two wires. If it's infinite (0) then it needs replacing.

http://bryantrv.com/docs2/docs/operating/ndr1292.pdf

I'd also suggest a Progressive EMS to regulate shore power to your RV. Well worth the money and lifetime repair/replacement.
Progressive Industries RV Surge and Electrical Protection industry lea
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Old 01-30-2016, 09:28 AM   #3
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Infinite and (0) are opposite numbers and most RV refers only have a single electric heating element. If it is infinite, then a simple replacement task, if zero or shorted, then it would trip the breaker, so that is unlikely. Also, a single system cools both freezer and refer compartments and the same coils are used if on electricity or propane. If the system is only marginally cooling, then the freezer may be cool (but not below 32 degrees) and the refer section not work at all.

Since you had an AC power surge, that could have also resulted in a spike in DC voltage and damaged the 12v DC control board and that would affect both electric and propane operation. Might also be the thermistor, which is the temp control, but that is less likely to be damaged by a voltage spike than the ICs on the control board.
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Old 01-30-2016, 11:00 AM   #4
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Quote:
Originally Posted by dayle1 View Post
Infinite and (0) are opposite numbers and most RV refers only have a single electric heating element.
Since you had an AC power surge, that could have also resulted in a spike in DC voltage and damaged the 12v DC control board and that would affect both electric and propane operation. Might also be the thermistor, which is the temp control, but that is less likely to be damaged by a voltage spike than the ICs on the control board.
See page 12 of the manual, this unit has two cartridge 120 v heating elements.
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Old 01-30-2016, 12:20 PM   #5
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See page 12 of the manual, this unit has two cartridge 120 v heating elements.
I stated "most", but you are right this model uses two elements. They are wired in parallel, so must be checked individually. A short in either would blow the 5 amp fuse. An open in either would reduce cooling performance but only on AC power, not on propane. Of all the electrical components in the refer, the heating elements are probably the least likely items to be damaged due to a power surge and even least likely to actually have power applied to them at the instant of a power surge.
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Old 05-09-2016, 12:28 AM   #6
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Just rebuilt my 1292 dometic , replaced the cooling coil installed new circuit board ,heating elements & thermistor . I found a yellow substance on the burner which was a leak in the refer coils. Also Smell of ammonia was present . When I replaced the heating elements I noticed the snap switch mounted on the round burner tube had a reset button on it ------check it Refer coil was rebuild - suggest to buy new rebuild was bent pain to install . Hal 2011 Ram 3500 2006 Landmark 35.6'
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Old 05-09-2016, 08:26 AM   #7
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The original problem has been resolved: I finally changed out the control board with a replacement monster board. Also checked the reset button on the heating tube. OK.

The original coil was replaced about two years ago after a discussion with Dometic concerning replacement under warranty. They were not satisfied that the in slide compartment was properly built/spaced for the refrigerator. HA! My Teton is a 40 year anniversary unit and since they had that experience with building the compartment I was positive that the space was correct.
At any rate I now have good cooling in the refer.
Thanks for all the suggestions and help.
Regards,
Catfish
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