Could someone let me know what the nominal temps should be for the freezer and refer of an Dometic 5er?I just had it in again for service and they said all was "just fine". And the cheapie refer thermometers I had in the freezer and refer were no good. Hey, I don't doubt that.Our ambient temp here today is about 70 and I had the cheapies in the refer for about 5 hours on gas. Coldest setting. And I put a digital unit that has a wire and sensing probe on the end.They stayed at 402 or so (both) and the digital said 60 after 5 hours.So I put one of the cheapies in the freezer and in a few minutes it was -10.Now I have an additional digital in the refer and see what it says here in an hour or so.My thoughts have always been to have the freezer at zero to 10 below and the refer in the, say, 36 to 42 range.Any input would be appreciated.I can't find the manual and Dometic is closed for the weekend.Thanks.

Dometic 5er? Never heard of that model. Typical refer temp should be around 42. Gas usually works better than electricity for cooling. Clean the chimney is my first suggestion.

Here's what my Dometic runs :Internal and external fans added to help

Oops, Dometic in my 5er (5th wheel)

My Amish Norcold hits -4 and 38.

They replaced the switch on the back that turns on the outside fans when the refer gets too hot. Well, the fans are obviously not running. I agree with 43 and 10 but with it set at the coldest (5) the freezer could get down to -10.

Refer Temps | Good Sam Community

20 Replies

pianotuna
Nomad III
Mar 21, 2015
From an ambient temperature start my Dometic takes 5 hours before the first cycle. I'd wait 24 hours before I would worry about it being too warm.

An internal fan helps cooling speed, and external fans may help as well.
robsouth
Explorer II
Mar 21, 2015
I would let it run longer than 5 hours for a test. Mine usually take about 12 hours to reach correct temps, especially if there is nothing in the unit. Fill only with "pre cooled" items as it will take forever to cool down with warm stuff put in it.
Ivylog
Explorer III
Mar 21, 2015
In my 1200 NoCold there is a 10 degree difference in the Refer section depending on where you measure... on the lower door being the warmest. Where are you measuring the 42? If the back wall of the freezer is 0, the fins will be a little below freezing on mine. If the freezer is -10 then the fins will be closer to 22-24 and the bottom of the door will be around 38.
stickdog
Explorer
Mar 21, 2015
At the present time mine is freezer 14 refrigerator 40 setting on 2. It was lower/cooler but we just restocked this afternoon so I expect it to go back down to somewhere around 7 freezer and 37 refrigerator.
popeyemth
Explorer
Mar 21, 2015
The 43 and 10 (kinda hard to see-we were in St Louis traffic) was with an outside temp of 100 shown in the mirror
Lauren
Explorer
Mar 21, 2015
They replaced the switch on the back that turns on the outside fans when the refer gets too hot. Well, the fans are obviously not running. I agree with 43 and 10 but with it set at the coldest (5) the freezer could get down to -10.
Big_Katuna
Explorer II
Mar 21, 2015
My Amish Norcold hits -4 and 38.
Lauren
Explorer
Mar 20, 2015
Oops, Dometic in my 5er (5th wheel)
popeyemth
Explorer
Mar 20, 2015
Here's what my Dometic runs :

Internal and external fans added to help
donn0128
Explorer II
Mar 20, 2015
Dometic 5er? Never heard of that model. Typical refer temp should be around 42. Gas usually works better than electricity for cooling. Clean the chimney is my first suggestion.

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Refer Temps

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