Question about GE Monogram Side by Side Refrigerator

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I think I need to replace the thermistor ZISS480NRGSS

I think I need to replace the thermistor in the freezer compartment because the temperature is dropping to -12 when set at only 5 degrees. I've located the thermistor in the wall between the refrigerator and the freezer. Do I have to access the thermistor by removing the inner wall?

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You can get exploded view drawings of your refrigerator from any of the appliance part dealer web sites or the GE web site. Simply enter your refrigerator's model number in the search box and click SEARCH. Once you get your drawing, you can see what needs to come apart in order to give you access to whatever part you want. You can also order the replacement part. Good luck.

Posted on Feb 02, 2010

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

What is a thermistor

A thermistor is a component whose
resistance changes when its temperature changes.
A thermistor is a special type of resistor whose
resistance decreases as its temperature increases.

A plot of resistance against temperature for
a thermistor is shown above. The plot is unusual
because it shows that a bigger current will flow
at a higher temperature. For most components, the
resistance increases as the temperature increases
and a smaller current flows at a higher temperature.
What is a Thermistor used for?
A thermistor can be used in a circuit to detect a
temperature change. For example, a thermistor may
be used to keep a freezer at the right temperature.
A circuit with a thermistor in it can switch the freezer on if the temperature gets too high and switch the freezer
off again when the correct low temperature is reached.
A thermistor can also be used to trigger a fire alarm. Thermistor are used in all Temperature controlled device and Motors to cut off
circuit when temperature rises over a certain limit to cut off power or trigger another circuit.

Mar 22, 2015 | Dryers

1 Answer

Refrigerator won't shut off

And what are the temperatures in both compartments?Reason I ask is this could be either a defrost problem where there will be warming of both sides and compressor will run all the time because it cannot satisfy the thermostat. Do you have frost buildup on rear wall of the freezer like in this photo HERE? Or the refrigerator runs all the time and temperatures are too cold. This will be problems with the=> User Control and Display Board WR55X10684

Or the thermistors that measure temperature inside freezer and fresh food section. I can help you if you need to test or replace those parts. If a defrost problem the most likely part on your model is the=> WR51X10094 Defrost Heater

I will be here if you need help, Thanks Sea Breeze

Feb 28, 2013 | GE Refrigerators

1 Answer

The back of the fridge is frozen and food is not getting cold anymore

Try this first:

Self Diagnostics

To enter Self Diagnostic mode, both temperature control panel displays must be illuminated. A display can be illuminated by pressing an adjacent temperature adjustment button. When both displays are illuminated, set the freezer and refrigerator temperature settings to 5. Simultaneously press and hold all

4 temperature adjustment buttons for approximately 3 seconds. A flashing 0 in the refrigerator and freezer displays will indicate that the refrigerator is in Self Diagnostic mode.

For temperature control panels with single-digit displays, the COLDER temperature adjustment button will increment the numbers up and the WARMER temperature adjustment button will increment the numbers down. Use the freezer temperature adjustment buttons to enter the test code number in the freezer display. Use the refrigerator temperature adjustment buttons to enter the test code number in the refrigerator display. When a test code has been entered, the displays will flash to confirm the test. Press the HOLD button for 3 seconds to begin the test.

For temperature control panels with 3-digit displays, the COLDER temperature adjustment button will increment the numbers down and the WARMER temperature adjustment button will increment the numbers up. Use the freezer temperature adjustment buttons to enter the test code number in the freezer display. Use the refrigerator temperature adjustment buttons to enter the test code number in

the refrigerator display. When a test code has been entered, the displays will flash to confirm the test

code. Press any button other than a temperature adjust button to begin the test.

When testing has been completed, do one of the following things:

• Enter code 1 5 to completely reset the system.

• Enter code 1 6 to exit diagnostic mode. The temperature control panel is reset automatically.

• Unplug the refrigerator for at least 10 seconds. Test mode will terminate when the refrigerator is plugged back in.
Test mode will terminate automatically after 15 minutes of inactivity.

You need to cycle your freezer display to indicate 0 and your refrigerator display to 7.

Control and Sensor System Self-Test (0 7)

This test checks all five thermistors located throughout the unit. Once the test is initiated, the test code (0 7) will stop flashing and the thermistor test results will appear on the freezer display in the test order listed below. The thermistor test sequence number will not be shown on the display.

If the unit is not equipped with the Quick Chill option, the third thermistor (quick chill) will display a 0 and 3 audible beeps will sound at the temperature control panel. This is not a failure if the unit is not equipped with the Quick Chill option.

Thermistor test results:

• P = Pass

• 0 = Failed

• S = Short to 5 VDC

• B = Bad amplifier

Thermistor test sequence is:

1. Fresh food top thermistor

2. Fresh food bottom thermistor

3. Quick chill thermistor (displays 0 if unit is not equipped with Quick Chill option)

4. Evaporator thermistor

5. Freezer thermistor

Note: Thermistor test results will be displayed in the sequence shown above. The thermistor test sequence number will not be shown on the display.

Note the failures if any. Should ANY of thermistors fail you must replace it.

Having said that... at this point your stick with doing a manual defrost by unplugging the unit and directing a fan into the compartment for just over 2 hours to make sure ALL of the ice on the coils and in the drains has melted. (Yes it makes a water mess!)

After the manual defrost restart the unit / plug it in and once the compressor starts listen for the evaporator fan when the door switch is actuated and the condenser fan in the bottom of the unit any time the compressor is running. If either of the fans are not running you must find out why. Can be a door switch, motor winding or power to the motor. The door switch does not affect the condenser fan.

Finally if the unit is not automatically defrosting due to a component failure... i.e

Heater, themistor, or wiring you will see ice build up again in 2 to 3 days again and you will have to keep going through the manual defrosting routine until the automatic defrosting problem is resolved.

Thanks for choosing FixYa.


Mar 27, 2011 | GE Profile Stainless Bottom-Freezer...

1 Answer

Is there a work around for installing a new Temp Control circuit board in a GE Refrigerator Model # PSS27NGMA WW. Orig bd has 3 connectors and new bd only has 2 connectors. I am attempting to replace...

I have a feeling that the temperature control board is not the problem. The fresh food compartment has two thermistors that relay information to motherboard through your control panel. If thermistor is bad or covered by an item it will continue to cool and freeze fresh food. Your air damper between freezer and fresh food compartment may also be wide open. Click Here=> Service Manual Tech Sheet Click Here=> Tech Sheet If you need additional assistance please let me know here or HERE, Thanks, Sea Breeze

Dec 21, 2010 | Refrigerators

1 Answer

Erratic temperature control. Freezer temperature varies from -4 to +2 even though set to -1, refrigerator also with wide variation. refrigerator is about 2.5 years old and this is a new problem.

Unles this is a big change and is not affecting the fresh food sect temperatures.Those should be 38 degrees for food safety. As far as the temperatures measurements those are easily altered by placing articles of packages near the thermistors in freezer and fresh food compartment. There are many issues you need to consider with the model refrigerator Artic/Profile. They are very sensitive to power surge and simple failures. Hopefully your being only 2.5 years out GE has resolved the problems of the past.GE is a good company and they do support their customers through the 5 year sealed system replacement. There are very many models of your type. Could you send me the model number listed for example PSS26MRSS. If you could I will get you some information that can help you save you repair cost in the end, Now if there is a problem with the thermistors we will need to resolve that because it will cause more problems later. Thanks Sea Breeze

Nov 10, 2009 | GE Profile¿ Arctica® Energy...

3 Answers

Freezer is not making ice. The water in the tray

Since cold air sinks, the fact you have frozen vegetables kind of points to the lack of circulation of the cooled air.
Sounds like they replaced two things which didn't need replacing and failed to check to see if the concealed fan that is supposed to distribute the cooled air was running. I don't think it is.

Oct 25, 2009 | Hotpoint HSS25GFP Side by Side...

1 Answer

Refrigerator is not getting COLD

clean the coils on the back of the fridge and make sure the condenser fan is free and running normally. that is the fan at the back of the unit on the bottom where the compressor is. if it cant ge rid of the heat, it wont cool. also make sure the the fan that supplys the cold from the freezer to the fridge is working.

Jul 21, 2009 | GE Monogram ZISS480NRSS 48" Built-In...

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How do I replace freezer thermistor

I have a Galaxy refrigerator model # 106.55122700 refgigerator side do not cool anymore

Apr 14, 2009 | Kenmore Refrigerators

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Sub zero refrigerator freezes food

Hello. You need a new cabinet thermistor and while you are at it replace the evaporator thermistor. (The evaporator is the cooling coil behind the back wall of your fresh food section) . These sense the temperature in your frig. Both of them are behind the back wall of your fresh food compartment. You will need a wire crimper and a heat gun or lighter to heat shrink the wire connectors that come with the new ones.

Sep 20, 2008 | Sub-Zero 650 / O Bottom Freezer...

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