Dometic Fridge Temps Warming Up - Fiberglass RV


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Old 07-18-2016, 08:54 AM   #1
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Name: Wendy Lee
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Dometic Fridge Temps Warming Up

Hi Everyone,

Although this may be a basic topic, I need educating. I set up on Saturday and leveled trailer with bubble level in fridge. Absolutely spot on. Set fridge at 3 to start up using electric, and have noticed after a couple days of campng temps warm up. At first it hovered between 36 and 41 degrees. Then starting yesterday 44 to 45 degrees Fahrenheit.

No change overnight so I turned fridge up to number 4 this morning. Down to 42 now. It is cool at my site with plenty of shade, breezy. Today a bit warmer. Been about 78 to 80 degrees.

I put one of those fridge fans in yesterday that run on batteries but doesn't seem to be helping. Would someone please let me know if I'm doing something wrong? Seal on door is right and I keep it locked.

I could use some learning here. I have a 2012 Scamp 13 standard. Thanks for all help.

Sincerely,
Wendy

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Old 07-18-2016, 10:05 AM   #2
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Not sure about which unit you have in your Scamp, but I have found on our Dometic on our Casita, if we switch on the fan which blows more air across the coils on the back side of the frig, the inside frig/freezer will stay a more consistent temperature. Also, when we put food in the frig we try to make sure it is pre-cooled or pre-frozen. Others with more experience will surely have better explanation.
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Old 07-18-2016, 10:14 AM   #3
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Name: Talia
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Originally Posted by CampyTime View Post
Hi Everyone,

Although this may be a basic topic, I need educating. I set up on Saturday and leveled trailer with bubble level in fridge. Absolutely spot on. Set fridge at 3 to start up using electric, and have noticed after a couple days of campng temps warm up. At first it hovered between 36 and 41 degrees. Then starting yesterday 44 to 45 degrees Fahrenheit.

No change overnight so I turned fridge up to number 4 this morning. Down to 42 now. It is cool at my site with plenty of shade, breezy. Today a bit warmer. Been about 78 to 80 degrees.

I put one of those fridge fans in yesterday that run on batteries but doesn't seem to be helping. Would someone please let me know if I'm doing something wrong? Seal on door is right and I keep it locked.

I could use some learning here. I have a 2012 Scamp 13 standard. Thanks for all help.

Sincerely,
Wendy

Sent from my VS985 4G using Fiberglass RV mobile app
Is there ice on the cooling fins inside the fridge? If your fridge started out fine, and then gradually got warmer, then I bet you're getting ice on the cooling fins. When they start icing up, which they can do surprisingly fast under certain conditions, then your cooling efficiency will quickly drop.

Are you opening and closing the fridge frequently, or adding new items to it? That will also reduce the cooling efficiency.

Also, if your thermistor is clipped to the cooling fins, it may need to be moved to a different position. Just Google for "adjust thermistor" to see what I mean.
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Old 07-18-2016, 02:07 PM   #4
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How long have you had this trailer and has it always worked to the performance you desire.

How long has it been since the last time you used the fridge working properly and now that the fridge isnt working properly.

Is setting 4 all the way up? If not turn it all the way up and work your way down. Make sure your vents behind the fridge are clear. Fridge won't work properly if you don't get the heat out on the back side of the fridge.

Have you run the fridge on propane?

I park my trailer outside all year long in the So Cal weather. My fridge has yearly spider issues. itsy bitsy spiders seem to like to crawl inside the burner of my fridge and make a silk like nest there. The burner will light but not heat up properly. Then I know that I have to disassemble the burner down to the gas orifice to effect the proper cleaning. This is not easy to do given the space for which I have to work.

My 3 way fridge doesn't have any electronics to go bad so it always is either you don't have enough heat from the propane or you are unable to get the heat out of the fridge compartment so the fridge can work properly.

If this trailer is new to you and never worked properly since you got it then there could be a dozen things that could be amiss.
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Old 07-18-2016, 03:07 PM   #5
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I have never used the fridge on propane. Trailer is a 2012 and has always seemed to have to work a bit to stay cool. Has been better since I learned more about using fridges leveling point.

I have setting 4 on fully and since I turned it up to 4 this morning it is now hovering between 40 and 41 degrees Fahrenheit. Trailer has been 81 inside. Perhaps I just needed to turn it up?

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Old 07-18-2016, 03:44 PM   #6
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Name: Wayne & Barbara
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I have never used the fridge on propane. Trailer is a 2012 and has always seemed to have to work a bit to stay cool. Has been better since I learned more about using fridges leveling point.

I have setting 4 on fully and since I turned it up to 4 this morning it is now hovering between 40 and 41 degrees Fahrenheit. Trailer has been 81 inside. Perhaps I just needed to turn it up?

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These units are susceptible to outside temperatures. They provide a "Delta T" or differential temperature. As the ambient temp goes up, the inside temp goes up.
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Old 07-18-2016, 05:43 PM   #7
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Ok thank you that makes sense

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Old 07-18-2016, 06:50 PM   #8
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Name: John
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fridge temp

In the past six summers I have never run mine any less than six. Stays one degree above freezing. Even the freezer section works great.
John
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Old 07-19-2016, 06:48 AM   #9
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I honestly just set it at 3 as I read somewhere that's a good setting overall. It makes more sense to me that these fridges are subject to various temp changes from sort of being outside and ammonia type so as long as I know it's level I'll adjust as necessary. Seems to take a good day though before it goes down. Its 38 this morning but much cooler outside. I read that your fridge should hover between 37 and 41 degrees. I have no freezer in this unit.

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Old 07-19-2016, 04:22 PM   #10
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It just depends on how much your temperature swings during the day and night. When we camp in the desert in the spring and fall some days there can be an outside temperature swing 50 to 60 degrees. I have had to raise the setting by day and back it off at night or risk freezing lettuce and stuff like that by early morning. It got more manageable when I put a fan for the waste heat on the backside grill and ran it through a thermostatic switch so once the outside temperature dropped below 70 outside the muffin fan didn't run.
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Old 07-20-2016, 11:49 AM   #11
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Ok Steve. This is all good information for me. Thank you. Now seems like I'm dealing with normal. Won't be overly concerned with adjustments anymore so long as it appears to be working properly and is reasonably level. Thank you to all who replied!

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Old 07-20-2016, 12:10 PM   #12
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Quote:
Originally Posted by stevebaz View Post
How long have you had this trailer and has it always worked to the performance you desire.

How long has it been since the last time you used the fridge working properly and now that the fridge isnt working properly.

Is setting 4 all the way up? If not turn it all the way up and work your way down. Make sure your vents behind the fridge are clear. Fridge won't work properly if you don't get the heat out on the back side of the fridge.

Have you run the fridge on propane?

I park my trailer outside all year long in the So Cal weather. My fridge has yearly spider issues. itsy bitsy spiders seem to like to crawl inside the burner of my fridge and make a silk like nest there. The burner will light but not heat up properly. Then I know that I have to disassemble the burner down to the gas orifice to effect the proper cleaning. This is not easy to do given the space for which I have to work.

My 3 way fridge doesn't have any electronics to go bad so it always is either you don't have enough heat from the propane or you are unable to get the heat out of the fridge compartment so the fridge can work properly.

If this trailer is new to you and never worked properly since you got it then there could be a dozen things that could be amiss.
I'm going to sidetrack this subject just a bit and talk about spiders in the fridge burner. I've some problem with that and here how I keep the spiders out.
1. I keep the fridge on and running all the time. When home it's plugged in, when camping it on propane.
2. I found a insect spray that's supposed to keep spiders out for 3 months, I spray the control area with it about every 30 days.

These two things have worked quite well for the past 6 years.
Hope some of you find this helpful.
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Old 07-20-2016, 03:18 PM   #13
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If the freezer is freezing and it stays below 44 in the fridge, it sounds like it is working normally.
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Old 07-20-2016, 03:35 PM   #14
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Thank you for the response. Running the fridge on electric year round is a bit like okill since we infrequently use the trailer. Unfortunately this year the only time we have taken it out was january when we went to Quartzsite. We are scheduled to go to the Lake Casitas run in October. We would have usually had an extra 2 weeks in June but we had to fly into the east coast for family commitments. That little electric element in the fridge would have been cooking the whole time. I've never had to replace one of those. I will have to look into that and see how challenging that is.

I will start trying to be more proactive with the spray though. It takes me about an hour to deal with the embedded spider webb. But the contortions and straining to fit 2 hands, a flashlight and your head into a one hand hole 2 feet off the ground leaves me suffering for the next 2 days and I am supposed to be on vacation. Still working and trying to find play time sucks.
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