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Old 05-23-2020, 02:42 PM   #1
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Norcold N8X refrigerator not cooling

I have a 2020 Jayco Melbourne 24L and it has a Norcold N8X refrigerator and the freezer does cool down to about 35 degress but the refirgerator does not coool at ll. I have checked the thermister and run the unit without it for several hours - no change. Any suggestions
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Old 05-23-2020, 03:56 PM   #2
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I guess I'll ask the most basic question. Did you advance the temp adjustment to it's highest setting on the control panel?

Then, check the location of the sensor on the fins in the back of the fridge, and slide it up a bit. It should stay on the fins.
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Old 05-23-2020, 04:22 PM   #3
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Ourís is a 12 cu. ft. but is the mh level? Ourís will not work if on a greater than 3 percent grade. (Norcold says 6.) Ourís also takes a long time to get cold. (24 hrs. at least.) Although they had to order it I ordered a refrigerator temp. sensor from Walmart. Wireless. One sensor for the freezer the other for the fridge. Ap. $25. Now we can monitor the temp. without opening any door.
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Old 05-23-2020, 05:57 PM   #4
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Yes I have the setting all the way cold and the thermister is as high as I can get it on the find.
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Old 05-23-2020, 05:59 PM   #5
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The unit is almost perfect as far as level goes. Thanks for the input.
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Old 05-23-2020, 07:36 PM   #6
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Does problem happen on AC and propane? Try operating on propane and see if the flame shuts off. If so, then the problem could be the thermostat. If the flame stays on then the fridge is still trying to cool down and would point to different areas. It is easier to see whether it is trying to cool if there is a flame rather than having to measure the 120 volt element.

Does the unit have vent fan(s) to pull the air up and out of the back area. They have been known to fail.

You need to narrow down the problem of whether the unit is trying to cool and failing or shutting off before it has reached a low temp. If it is trying to cool but getting nowhere that could be a big problem. If it shuts off before cool that could be a thermistor, control board, etc.
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Old 05-23-2020, 09:00 PM   #7
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It does not matter as far as AC or gas. It is the same issue. The freezer gets cold about 35 degres and the refer does not cool. The condenser gets hot for both. I am not sure about vent fan. I have only had the unit about a month and it's still under warranty. The unit does not shutdown and at night when it is cooler outside the freezer gets cold and then during the day when the outside temperature gets hotter the freezer gets warmer. I am trying to figure this out because the dealer won't be able to get it in until mid June. Not happy with the dealer at this time.
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Old 05-24-2020, 05:50 AM   #8
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I would try calling Norcold they helped me in the past.
They will work with mobile tech’s.
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Old 05-24-2020, 06:46 AM   #9
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I called Norcold and they told me to take the thermister out and let it run for 8 hours on the coldest setting. If there is no change contact an authorized dealer/repair shop. No help.
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Old 05-24-2020, 06:16 PM   #10
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As previously mentioned ours is a 12 cu. ft. but Norcold recommended to a repair facility that the exhaust fans on the back side on the refrigerator unit needs to come on sooner & run longer. They implemented this fix. I donít believe Jayco built sufficient venting area on the back side to exhaust the heat build up while operating.
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Old 05-24-2020, 06:21 PM   #11
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Any idea what fix they used for the timing of the fans? I would think the timing would be controlled by the board.
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Old 05-24-2020, 06:22 PM   #12
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Thanks for getting back to me. I think based upon my research the venting is th issue but I am not sure how to correct it. I guess I will have to wait until I can get it in to the repair facility in mid June.

Thanks for your help
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Old 05-24-2020, 07:04 PM   #13
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They did not replace the board. The exhaust fans must be thermostatically controlled. Sorry I can not be of further assistance.
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Old 05-25-2020, 04:13 AM   #14
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There were some earlier post related to venting and adding exhaust fans to the top of the unit. I believe it was Rustynuts that had a pretty good explanation of his original problem with lack of venting and finally adding fans to improve efficiency.
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Old 05-25-2020, 08:16 AM   #15
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Quote:
Originally Posted by PAL70 View Post
I called Norcold and they told me to take the thermister out and let it run for 8 hours on the coldest setting. If there is no change contact an authorized dealer/repair shop. No help.



Sorry you're having trouble. Two thoughts - if it's ventilation related, would pulling the outside cover / access panel off, and dragging a fan there - possibly help?


Second - call a Mobile RV Tech. Find one that you like and trust. I'm not trying to get Negative Nicky or Doom and Gloom - but most RVs will need a lot of things fixed over the years. Waiting on the dealer is usually ill advised.


I've gotten to know a Mobile Tech and he's the first one I call when there's something I can't fix myself.
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Old 05-25-2020, 09:14 AM   #16
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Thanks for your input. I don't hear the freezer fan coming on so I asume it is ventilation. All fan fuses check out fine. I have owned 3 other RVs - 2 of which were brand new, none of them were Jayco, and this one has the most problems for a 2020 unit.
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