What is the reason for refrigerator not cooling?

Clogged coils can cause poor cooling. Check to make sure nothing is stuck in the condenser fan and that it spins freely (models with coils on the back won’t have a fan). To do this, unplug the fridge and pull it out. Clean the fan blades and spin the fan by hand to see if it’s stuck.

Why is my Norcold thermistor not cooling properly?

If the Norcold refrigerator thermistor is attached on the wrong cooling fin, the fridge will appear to not cool correctly. Please start by checking that your thermistor is located properly.

When to replace the thermistor in a refrigerator?

The thermistor resistance should change in conjunction with the refrigerator temperature. If the thermistor resistance does not change, or the thermistor does not have continuity, replace the thermistor. The compressor is a pump which compresses the refrigerant and circulates the refrigerant through the evaporator and condenser coils.

How can I tell if my thermistor is not working?

If the thermistor resistance checks okay, we know it’s not the thermistor. We still have 2 possible failures: the wire harness or the electronic control board. Let’s check the thermistor wiring harness. Plug the thermistor back in. Remove the 13-pin connector from the electronic control board.

How is the thermistor connected to the cooling fin?

Note that the thermistor is connected to a quick connector (red arrow). the yellow arrow points to the thermistor on the proper cooling fin. This connector can be seen in the following photo. The blue arrow points to wiring that we added so that we could test this thermistor with a data collection ARPrv Control.

If the Norcold refrigerator thermistor is attached on the wrong cooling fin, the fridge will appear to not cool correctly. Please start by checking that your thermistor is located properly.

What happens when the thermistor on a refrigerator is not working?

If the thermistor resistance does not change, or the thermistor does not have continuity, replace the thermistor. The compressor is a pump which compresses the refrigerant and circulates the refrigerant through the evaporator and condenser coils. If the compressor is not working, the refrigerator won’t cool.

Where is the thermistor on a Dometic refrigerator?

For the RVers that love the heat, we recommend installing some fans in the back to help with the air flow. The next thing to check is your Thermistor (thermostat/ resistor) located inside the refrigerator. It has a 4-prong connector located at your light fixture at one end and the other end connects inside the refrigerator on one of the back fins.