Originally Posted by Playtime III
Do you have a thermistor that clips on the fins? Did it get bumped as you can adjust the temp by sliding it up/down the fin. Or the themistor died. IF so, a "Snip-the-tip" is an easy swap out.
The position of the thermistor determines how much ice buildup is on the fins. If the thermisor has failed then the unit will not turn off (causes ice on the fins). It works by sensing cold temperature. Once it's cold enough the resistance generated by the thermistor signals the circuit board to cut power (turn off gas) to the heater.
To check the operation of the thermistor, have the fridge running on gas. Remove the thermistor from the fins and put it in a glass of ice water. If it's working correctly the gas valve will be shut off from the circuit board.
If the fridge is not cold but the freezer works fine then it's probably a partial block in the cooling coils. This can sometimes be corrected by turning the fridge end over end (remove it from the RV first
). You will hear the solution repositioning itself as you turn it. Didn't work for mine but I've heard about it working for others. I guess it depends on how much is blocked and where the blockage is.