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Old 06-19-2021, 08:04 PM   #1
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2021 Classic 33 Dometic Fridge

Our fridge wonít drop below 60 degrees. It was 36 when we left storage - drove 6 hours with fridge on LP, noticed it was 90 degrees inside air temp & fridge was 60 at that point when we got to RV resort ó hooked up on 50amp and now wonít get cold.

Iíve tried turning it off and back on again. Running on electric only and running on LP only.

I turned it off and unplugged it in the compartment outside under the fridge, waited a few minutes & plugged it back in.

Iíve moved the white plastic thing to the top of the metal thing in the back right.

Nothing seems to work.

Fuse? Thoughts?

Thanks.
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Old 06-19-2021, 09:03 PM   #2
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*update: itís working again. Turned it off for 5 mins then back on again. That worked.
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Old 06-19-2021, 09:14 PM   #3
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Thanks for the update. You didn't leave us hanging.
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Old 06-19-2021, 09:25 PM   #4
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Quote:
Originally Posted by AnnaBelle33 View Post
Our fridge won’t drop below 60 degrees. It was 36 when we left storage - drove 6 hours with fridge on LP, noticed it was 90 degrees inside air temp & fridge was 60 at that point when we got to RV resort — hooked up on 50amp and now won’t get cold.

I’ve tried turning it off and back on again. Running on electric only and running on LP only.

I turned it off and unplugged it in the compartment outside under the fridge, waited a few minutes & plugged it back in.

I’ve moved the white plastic thing to the top of the metal thing in the back right.

Nothing seems to work.

Fuse? Thoughts?

Thanks.

Something similar happened to us a few weeks ago. Do you recall what your display was doing at the time? Mine was flashing between temperature and something else. Initially, I didn't think much of it. After perusing the manual, I realized this was a very subtle error code indicating that the gas had not ignited. Simply turning off the unit and turning it back on (I did it immediately; no 5 minutes for me) fixed the problem. I was driving through windy West Texas when this happened, so I am guessing the wind blew out the flame.

If this happens to you again, note what is happening on your display. Dometic could make it easier to know when things aren't working correctly....
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Old 06-20-2021, 06:20 AM   #5
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It was just displaying 60. I could hear a weird noise coming from the right side between the unit and the wall. Thatís when I tried turning it off and leaving it off for a while. Itís working normally now.

We are going to start putting anything in it cold from my beer cooler outside first.
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Old 06-20-2021, 09:30 AM   #6
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Check your circuit panel for all breakers to reset. the GFCI affects the fridge thermostat. Been there, that is the fix. Incidentally the GFCI breaker will not reset unless on shore power.
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Old 06-20-2021, 09:36 AM   #7
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I had the exact same issue on my last trip. I always turn mine on a day or two before we leave then turn on the gas when we hit the road. Mine stayed at 60 long enough that I had to throw out all of the food. It took 2 days for it to finally come back on. Very frustrating for sure.
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Old 06-20-2021, 09:59 AM   #8
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Spider webs

Yes spider webs. In one location on the beach, the hot-water and refrig kept trying to light but would not do it. I took everything apart on the side but still couldn't find the problem. Another streamer came by and said he had had the same problem. He took the angeled piece for the water heater and blew through it - and voila a spider web blew out. He now uses a pet flea collar wrapped around the cool part of the fitting. Never had that problem again.
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Old 06-20-2021, 10:25 AM   #9
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What can often happen is the fridge tries to light but can't due to air in the propane line. Purge the line before you leave to make sure it is lighting. When you turned it off and back on you reset the start cycle again and air was purged by then . At least this was my experience.
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Old 06-20-2021, 11:03 AM   #10
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From the manual:

To restart GAS operation, press the main power ON/OFF button to the OFF and then ON position. The control system will attempt a new ignition sequence. If the refrigerator has not been used for a long time or the LP tanks have just been refilled, air may be trapped in the supply lines. To purge the air from the lines may require resetting the main power ON/OFF button three or four times.

What I read elsewhere said to restart it as many as ten times.

Mine wouldn't start recently. By the time I checked for debris at the igniter, I had reset the main power more than four times and the flame had been running (the flame cover was hot). Then I remembered that I had removed and reinstalled a propane line to install the lift kit.
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Old 06-21-2021, 06:47 AM   #11
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Use Battery to power fridge on road

We had a similar problem and resetting solved it. Here is another question. Can you run the fridge on just battery while driving? This could save some propane for generator, heat, etc.
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Old 06-21-2021, 08:33 AM   #12
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Smile Here's a photo of where to set the thermistor in the fridge

We too have struggled with high outside temps affecting our fridge in our 2020 Classic 30RBT, however after searching the internet, we came across this diagram that shows where to move the thermistor to get the temps you want inside the fridge...and it works! Take a look at where you should place it to get the coldest temperature. As you can see, the lower left corner is the place to put it to get the coldest temperatures. It works!
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Old 06-21-2021, 08:47 AM   #13
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Quote:
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We had a similar problem and resetting solved it. Here is another question. Can you run the fridge on just battery while driving? This could save some propane for generator, heat, etc.
The fridge works on either 120Vac or propane. It could, I suppose, run on 12V if you plugged it in to an inverter circuit...but that's not the default electric design.
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Old 06-21-2021, 10:00 AM   #14
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RPS - thank you! It was on middle right side. I moved it up thinking it was best place. When actually it was the worst. Faak!!!!

Thank you. Will move it when I get back from beach!
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Old 06-21-2021, 11:36 AM   #15
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Page link for Thremistor Setting

Quote:
Originally Posted by RPSweeney View Post
We too have struggled with high outside temps affecting our fridge in our 2020 Classic 30RBT, however after searching the internet, we came across this diagram that shows where to move the thermistor to get the temps you want inside the fridge...and it works! Take a look at where you should place it to get the coldest temperature. As you can see, the lower left corner is the place to put it to get the coldest temperatures. It works!
Page link -

https://rvrefrigeratorrepair.com/unc...istor-shuffle/
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Old 06-21-2021, 12:17 PM   #16
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I just YouTubed this and every video I found contradicted this chart.

https://youtu.be/Gsihtpi_kqc

Videos show higher is colder.

Mine wonít go past half way anyway. The cord coming in isnít long enough to allow it to move up past half way.
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Old 06-21-2021, 12:38 PM   #17
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Chas, if you pull on the cord gently, it should have a good bit of slack in the compartment that will allow you to move it over.
also - If your propane valves have been turned off or your tanks recently filled, you can just about bet everytime that the fridge will not light on gas when it does the auto switchover. It will try to light and then flash an error code.
Purge the air by lighting your stove burner for few seconds before you switch to LP. Then when you switchover , go outside and make sure you can hear the burner going.
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Old 06-21-2021, 12:47 PM   #18
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Thanks Bryan. Iím good with the purge. I was scared to pull the wire since Iíve got a week left in SC and didnít want to break the fridge. Lol
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Old 06-21-2021, 01:49 PM   #19
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I had my first hot weather experience with the fridge last month. Itís definitely a learning curve!!
Another tip that you may already know:
Try not to put anything thatís even remotely warm in the fridge. Doing so will heat it up and take forever to cool back down. Transfer from your fridge at home or your cooler or buy stuff thatís already cold and get it into the fridge ASAP. And whatever you do, donít put leftover pizza in there thatís still warm. Ask me how I know this.
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Old 06-21-2021, 02:22 PM   #20
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we figured out thatís what we did. Once we set up, Cindy put 6 warm water bottles, warm condiments and warm salsa. That started the spiral of the fridge heating up. We never had to worry about that with our huge, residential fridge we had in our 5th wheel. Lesson learned.

We were able to get everything in the Yeti I normally use as my beer cooler outside so nothing got ruined. We had hit Kroger 30 mins outside of Carolina Pines.

All good now - thank you!!
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