Fridge temperature depends on ambient

Hi dougrainer,

If I understand you correctly, #5 setting is (for example) 40 f. So the fridge will be in cooling mode until the fins are 40 f? Then it cycles " off".

But the sensor clips onto the cooling fins. They cool the fridge by convection of the air inside the cavity. So adding a fan may help to even out the temperature in the fridge?

I'm always grateful for your insights into these items. I do know that the Norcold from my 1987 RV appeared to work better than the Dometic in my 2005 RV.

Some (all?) Norcolds have a diagnostic thing you can do as explained in their manuals. You can check for a thermistor fault etc.

This does not make sense, for a correctly operating refer. You set at 5 and lets say that gives you a temp of 38 degrees. REGARDLESS of the outside temp, the refer WILL RUN to keep that temp of 38 degrees. Setting it to a lower (8) will NOT make the refer maintain the 38 degrees faster. Unless you are opening and closing the refer too much, but even so, the temp set of 5 will still maintain 38 degrees. ALL the temp setting does is run the refer until the set temp is reached. I hope you are not like my wife and think that when it is 80 degrees in our house, setting the AC at 65 will cool the house down quicker than setting at 70 degrees:B Changing the set temp on an RV refer will not decrease the time it takes to reach set temp. I will bet you have some sort of digital temp sensor readout? Now, I would replace the Temp Thermister. Cheap to do and a BAD Thermister will still OHM out and test good. Doug

It is possible to get a replacement sensor that has a "dial" on it. I have not tried this--but apparently they give better results that the eyebrow buttons.

I have a twelve volt fan that helps circulate the air which helps.

In summer time it is important to use the drain tube in a manner that creates a "trap". That prevents warm outside air from comming up the drain tube.