The thermostat pad may be bad.
Not sure about the correct part name, but if you look on the fins in the bottom part of your fridge. You will see a small item with two wires going to it, this item is slid on one of the fins on the right side. If your fridge is a
Norcold, this item controls the temp setting. It may have gone bad, mine
did and began to freeze everything regardless of the setting on the fridge.
This item is easy to replace, it simply plugs in near the light. If you replaced it, MAKE SURE you put the new one in the exact place as the one you removed for this has a great bearing of the correct temp you set. You local RV store should have the replacement for around $10-20 dollars. I bought mine at Camping World. You need the Brand, model of your fridge when purchasing the new part.
You can test it by using a volt/ohm meter to read across the two wires, placing the item in a glass of water, pour warm water into the glass. You should see the reading CLOSE. Pour out the warm water, place ice cubes
into the glass pour water into the water with the thermostat pad, when the cold water comes into contact you should see the reading open.
I may have this in reverse about the testing, but you get my drift about the opening and closing of the cool and hot water.
Sid, Lois & HRH MISSY Terrible 2s SHIH TZU
2011 ROCKWOOD 8285 WS
2014 F-250 KING RANCH PS/SD/6R140/BFT
BOLIY PRO 3600SI GEN
DAYS CAMPED 2016 57 DAYS