Checking A GE Refrigerator Thermistor From The Main Board You can check the refrigerator thermistor directly from the main board or you can check them by cutting them out. Checking thermistors from the main board is the best way, but the only thing is that it is a little complicated.
How to check a GE refrigerator thermistor?
Checking A GE Refrigerator Thermistor From The Main Board. You can check the refrigerator thermistor directly from the main board or you can check them by cutting them out. Checking thermistors from the main board is the best way, but the only thing is that it is a little complicated.
How do I adjust the temperature on my Refrigerator?
Refrigerator - Adjusting Temperature Controls At initial startup both the fresh food and freezer controls should be set at the normal settings or mid point settings. Temperature controls can be found in the back of the fresh food compartment, near the top of the fresh food compartment or on the exterior dispenser control panel.
How do I know if my refrigerator is working properly?
Checking or testing the internal fresh food and freezer compartment temperature can help determine if the refrigerator is working properly. Factors that affect temperature readings: Frequency of door openings plays a large role in maintaining proper refrigerator temperatures.
Where is the thermistor located on a Frigidaire refrigerator?
Fresh food thermistor – located in the fresh food compartment (upper left wall, covered with a fish fill cover plate). It provides temperature data in the “fridge” or fresh food (ff) compartment to the main control board that will determine if a damper should be opened or closed to increase/decrease cold air flow into the FF compartment
How do you test a GE refrigerator temperature sensor?
2:0722:19Testing and Replacing a GE Defrost Sensor - WR55x10025 - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo how this test is done take your black lead and count from the left. One two three four fiveMoreSo how this test is done take your black lead and count from the left. One two three four five should have a blue wire with a white stripe through it. And that's where your black lead will go.
Where is the temperature sensor on a GE refrigerator?
0:565:49How To: GE Temperature Sensor WR55X10025 - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe first one is located inside the refrigerator compartment to access this sensor use a quarter-MoreThe first one is located inside the refrigerator compartment to access this sensor use a quarter-inch nut driver to remove the screw for the cover that will reveal the temperature sensor.
How many ohms should a refrigerator thermistor read?
You will need to unplug the refrigerator before starting this test. Set your multi-meter to ohm. Step # 11 – Take an OHM reading from your multimeter; it should be around 16.3 Kilo-Ohms (16,300 Ohms). Any reading that is more or less than 5% from this value means your thermistor is bad and will need to be replaced.
How do you test a thermistor temperature sensor?
0:432:04How to test Thermistor LG Part # 6323EL2001B & GE Part ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing a multimeter you'll need to do an ohm test to check the resistance of the thermistor. It isMoreUsing a multimeter you'll need to do an ohm test to check the resistance of the thermistor. It is important to note that you cannot do a continuity test on a thermistor.
How do I know if my fridge temperature sensor is bad?
Here are some signs that your fridge has a faulty thermostat and some troubleshooting tips to help you deal with them.The Refrigerator Is Not Cool Enough.Unusually Cold Refrigerator.Refrigerator Temperature Fluctuation.Sub-Zero Refrigerator Temperature Troubleshooting Tips.Contact Wilshire Refrigeration.
How do I know if my fridge thermostat is working?
1:523:20No Cool Refrigerator - How to test the Thermostat - YouTubeYouTubeStart of suggested clipEnd of suggested clipGet some kind of reading. With it turned off that's what you get if you got the thermostat turned onMoreGet some kind of reading. With it turned off that's what you get if you got the thermostat turned on one and that's the reading you're getting the thermostats no good alright.
How do you check a thermistor with a multimeter?
Connect the multimeter terminals to the thermistor leads. Polarity is not an issue here. Now heat the thermistor by moving your heated soldering iron tip to it. Now you can see the multimeter reading smoothly increases or decreases depending on whether the thermistor under test is PTC or NTC.
What happens if a thermistor fails in refrigerator?
The thermistor senses temperature changes in the refrigerator and sends the control board a signal about the temperature change. If the thermistor fails, the refrigerator won't stay at the temperature you set, resulting in items either freezing or spoiling because it's too cold or too warm.
What happens if a thermistor fails?
When a thermistor is failing, it'll display incorrect temperatures, or you'll see impossible temperature fluctuations. For example, you may initially get a reading of 210 degrees only to see the temperature drop to 189 degrees and jump back up again.
How is a thermistor diagnosed?
When you apply heat to the body of a thermistor, its resistance should begin to steadily decline within seconds after heat is applied. If the NTC thermistor follows this behavior, then it is good. If it does not, it is faulty and should be discarded.
Can a thermistor be bypassed?
Generally speaking, a thermister is a resistor that is sensitive to/affected by ambient heat. When the ambient heat changes, it's value will change. You can bypass it with a regular resistor, but you have to know the value associated with the thermister.
Can you repair a thermistor?
Yes you can repair the wires on the thermistor, Flexible Silicone insulated wire is the best bet.
How to check thermistor on GE refrigerator?
Checking A GE Refrigerator Thermistor From The Main Board. You can check the refrigerator thermistor directly from the main board or you can check them by cutting them out. Checking thermistors from the main board is the best way, but the only thing is that it is a little complicated.
How to check temperature of a thermistor?
Then wait for at least five minutes for the temperature of the thermistor to reach 32 degrees. ...
What happens if a refrigerator thermistor is bad?
If one of the thermistors is bad the refrigerator will not cool correctly. If the refrigerator is not cooling properly and you suspect you have a thermistor problem, it is best to test both the freezer thermistor and both of the fresh food thermistors.
What is the evaporator thermistor?
Evaporator Thermistor. The evaporator thermistor is the one attached to the top of the evaporator coils in the freezer (see picture below). The evaporator thermistor controls the defrost cycle, so if it is bad the refrigerator will not defrost and the coils will look like this.
Where is the freezer thermistor located?
Freezer and Fresh Food Thermistors. The freezer thermistor is located at the bottom of the freezer near the drain pan (see picture below). The fresh food thermistors are in the fresh food section and depending on the model they will be in different places.
Can you test a refrigerator thermistor?
The main thing is that if the refrigerator were cooling properly, you wouldn’t be testing the thermistors. So you don’t know what the temperature of the thermistor is. Placing the refrigerator thermistor in a cup of ice water easily solves this problem.
Key Points
Thermistors provide critical temperature data to the main control board which in turn governs the refrigerator operation
Background Info
A thermistor, which is combination of the words therm al and res istor, is a type of resistor used to measure temperature changes and deliver differing electrical resistance in response to that change.
Keystone (Thermometrics) vs EPCOS Thermistors
Around 2010, GE discontinued using thermistors made by Keystone/Thermometrics under the General Electric Information Services (GEIS) label due to high failure rate caused by moisture penetration. Keystone/Thermometrics thermistors have an open bottom (usually in black) at the point of wire entry into the polymer casing.
Thermistor Location
There are four thermistors located in a GE Profile PFCF1NFW refrigerator:
Defrost Thermostat Location
Defrost thermostat is located in the freezer compartment, usually clipped tightly on to a tubing attached to the evaporator.
What Causes Thermistors to Fail
Thermistors rarely, if ever, fail completely (which would make our job very easy), although we sometimes see a thermistor fail due to an open circuit resulting from a break in wires between the thermistor and main control board. This usually happens when wires are spliced incorrectly allowing moisture penetration.
Can You Tell a Failing Thermistor By Visual Inspection?
Obvious color discoloration, cracking or bulging would be great to quickly solve a malfunctioning refrigerator but unfortunately, most failures involve internal chemical degradation in resistance over a period of time. That means you CANNOT rely only on a visual inspection to detect your problem.
