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Old 07-10-2018, 10:43 PM   #1
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Fridge question/help

2014 23ikss Dometic fridge.
-When on propane, both the freezer and fridge get cold
-When on electric, freezer gets cold but fridge stays warm (back fins stay warm)
-Checked thermistor and it is in proper place and fridge works on gas and the camper is level.

I know people say give it hours (which I have)or even days when on electric, but before this issue the fins in back would start to feel cooler after 30mins and now they just stay ambient.
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Old 07-10-2018, 11:35 PM   #2
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The gas burner puts out 35% more BTU's than the electric element (1500 vs 1108). Efficiency of the unit goes up with a hotter heat source. Efficiency is the related to the difference between the hot side (burner/element) and the cold side (the coils on the back of the unit); the greater this temperature difference, the more efficient the cycle. Given that the ambient temperature around the coils on the back is about the same when you change heat sources, the gas burner, being hotter, gives you better efficiency. It may be just enough to get the fridge cold.

Since you can't raise the temperature of the electric heating element, your other option is to cool the coils further. Suggest you install a couple of computer fans to blow up across the coils.
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Old 07-11-2018, 08:02 AM   #3
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Thank for the reply. So it seems like maybe the electric coil may not be getting as hot or efficient as it used to? Do you know of an suggestions to make that hotter or to unsure its doing what it should be?
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Old 07-11-2018, 08:17 AM   #4
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Thank for the reply. So it seems like maybe the electric coil may not be getting as hot or efficient as it used to? Do you know of an suggestions to make that hotter or to unsure its doing what it should be?
You can't make it hotter, you can only make the other side cooler, i.e., install some fans.

I doubt the efficiency has "changed." But if the outside temperature has gone up, that warms up the coil side, and use of the lower electric element (as opposed to the hotter gas) cools down the heating side. So efficiency goes down.
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Old 07-11-2018, 09:04 AM   #5
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X2 what rockfordroo said. here is an example of one kit aval. https://www.amazon.com/Valterra-A10-.../dp/B002N5YDG2
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Old 07-11-2018, 09:10 AM   #6
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Is it possible that the electric element is bad and not getting as hot as it used to? I'm just learning about these kind of refrigerators myself, so I'm just curious of the element could be the issue and I also wonder if it's easily replaceable.
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Old 07-11-2018, 09:30 AM   #7
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Is it possible that the electric element is bad and not getting as hot as it used to? I'm just learning about these kind of refrigerators myself, so I'm just curious of the element could be the issue and I also wonder if it's easily replaceable.
Electric elements typically either work or they don't. I believe it's a "single wire" element, so I highly doubt it's not getting as hot as it used to. Although I could be wrong, as I've never actually seen the inside of one.
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Old 07-11-2018, 09:40 AM   #8
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A quick search found that the Dometic 120V heating element is 325 watts did not find any options for larger or smaller elements.
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Old 07-11-2018, 02:17 PM   #9
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A quick search found that the Dometic 120V heating element is 325 watts did not find any options for larger or smaller elements.
For those following along: 325 watts = 1108 BTU's.
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Old 07-11-2018, 05:49 PM   #10
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This is the stock Dometic that came with the 2014 23ikss. Does the electric and the gas use the same system or are there two (like one for the fridge and a separate one for the freezer)? What would cause the electric to no longer work as well and not be able to cool off the fridge part? This just started happening this year with the electric not cooling the fridge. The outside temps aren't any hotter then they had been and I am in the same altitude as well so I can cross those two off. Could it for instance have lost some of the fluids that create the cooling ( I don't notice any leaks)? Thanks for the replies guys!
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