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Old 10-10-2013, 05:33 PM   #1
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fridge too cold ?

We've got a Dometic model RM2652 fridge in my 06 T-1950
Turned it on (propane) few days ago to check it's operation before our departure for 6 months @ end of Oct. Having some difficulty regulating temp.
We have a wireless indoor/outdoor thermometer & keep it in fridge. Display unit hangs on wall. According to it regardless of how "warmer" I adjust the sliding temp regulator that mounts on one of the fins, the fridge stays @ 31-33 degrees. I've slid the wire back along the plastic slider clip to get the small yellow sensor (?) as far into the "warmer' range as possible but moving slider any lower & it falls off the fin. Wife thinks once it's loaded w/ food & we're opening door frequently it'll read in the 38-42 range where we'd like it but she's an optimist. To check my wireless therm.'s accuracy I put a traditional bulb type (mercury?) one in fridge which reads 36 deg.
Any advice on adjusting fridge temp ? Thanx
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Old 10-10-2013, 06:27 PM   #2
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I hate to say it but I belive your wife is right
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Old 10-10-2013, 11:42 PM   #3
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31 to 33F with no food or anything inside to cool is very possible. The sliding fin only moves the cooling a slight bit if any. The fridge does work better with something to cool verses empty.

We actually use ours in the 32 to 33F area on purpose and I have no adjustment. The only way I could get it to maitin in this area was to add a fan up in the roof vent area. Now it maintains the temp better in hotter weather and cools down from being turned on quicker.

Sliding the fin does not do much on our unit. The control board is preset and I cannot change it.

It only takes a good hunt for, "where did he (or she) put that, I know it is in here".... and the temp will rise up fast with the door being open. Your food being colder will help bring it back down. If you are normally regulating in the 42 range, it will rise to 52 on that search and destory mission for what you were your looking for and that is too warm.

Hope this helps and good luck when out camping. Remember to send us some pics!!!
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Old 10-11-2013, 06:32 AM   #4
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the thermister is "the yellow thing"
If it's "open" no ohms, unit will never stop cooling.
try running on gas, flame on, unit cooling. off t-stat satisfied- stand by
thermister reads air temp, could try the ice bath to see if its working.
the thermister is connected to pcb - 2pin connector top left corner i think
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Old 10-11-2013, 07:12 AM   #5
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Thanx gents. Much appreciate your replies. Was hoping to avoid any issues requiring professional, expensive help before our departure.

As a further check on my wireless therm., I put a small ice cube tray of water in fridge. It's never had even a skim of ice on it so don't believe the temp has dropped to sub-freezing. Traditional, bulb style therm. read a few degrees higher so along w/ your assurances all will be well when filled w/ food, I'll quit being concerned.

Thanx again
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Old 10-11-2013, 07:22 PM   #6
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The original post said: " I adjust the sliding temp regulator that mounts on one of the fins". Wouldn't the indoor/outdoor thermometer read a more accurate temp if the inside "sensor would be mounted to a shelf instead of the cooling fins? In my mind the cooling fins are at the maximum cooling temp, the coldest, all the time the cooling unit is running and temps regulated by the running time and not temperature degrees. Watching the temp of the cooling fins will tell you when the cooling system is running, or not, and not necessarily the inside temp of the fridge.
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Old 10-13-2013, 10:03 AM   #7
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It is not too unusual if it is cold outside for the fridge to become very efficient!
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Old 10-29-2013, 03:15 PM   #8
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Cold night around 35 last night, my saturn is shore powered, new to me, i usually boondock and use the propane. Anyway, food FROZE even at the lowest elec settin on the fridge, any advice? I have 5 more nights out so i prefer not to use the propane until the last two nights for dry camping.
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Old 10-29-2013, 04:31 PM   #9
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It's probably going to do that on propane too if it's that cool at night. Just tun it off for a few hours or over night the back of the fridge is exposed to the outside air should stay cool enough inside.
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Old 11-03-2013, 11:47 AM   #10
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Quote:
Originally Posted by Photokit View Post
Cold night around 35 last night, my saturn is shore powered, new to me, i usually boondock and use the propane. Anyway, food FROZE even at the lowest elec settin on the fridge, any advice? I have 5 more nights out so i prefer not to use the propane until the last two nights for dry camping.
H'mm, running on electric will not/should not change the freezing issue by going to LP. The control board responds to the same signal inside the camper on LP or ele.

That said you "might" have a sensing problem. When it is warmer out, there is heat loss and you may not notice the sensing issue so much as the fridge has to work harder as your loosing the heat, thus food does not freeze. Actually when on LP the fridge cools even better/faster.

We camp down to 10 to 19F over night on electric and do not have an issue.

Do you notice the problem in "all" the food in the fridge or just the very top shelf right next to the coils?

If just come food, move the more sensitive (lettuce etc) food off the top shelf to the bottom area as it will be colder near the coil.

If everything inside freezes, well OK what is in the freezer? anything? We always have something in the freezer, ice blocks to travel with the fridge off, ice cubes, frozen food of something. This may be absorbing some of the cooling not allowing the main fridge to over cool. There is no real separation in the cooling control between the freezer and fridge. If the freezer has nothing to work on to freeze then all that capacity might be going to the fridge.
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