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ZISB420DNBII
ZISB420DNBII General Electric Refrigerator
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This is an OEM replacement water filter for your refrigerator. The manufacturer suggests replacing this filter every 6 months or 300 gallons of water. If not replaced regularly, you will risk contamin...
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Order now and your part arrives by Mar 21
$29.82
The temperature sensor, also referred to as a thermistor, is used to monitor the refrigerator and freezer internal temperatures. The sensor is a small capsule like device that is protected by a white ...
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$13.60
The evaporator fan grommet is used to provide a cushion between the fan motor and the motor mounting bracket in your freezer. This genuine OEM part is about one inch in diameter and is red in color. I...
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$14.65
This OEM compression ring is used to hold the evaporator fan motor in place. Signs that you may need to replace the compression ring are if the fan is noisy, or your fridge or freezer are too warm. We...
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$81.71
This evaporator fan motor is located in the back of the freezer, and circulates air over the refrigerator coils. These coils will convert the heat into cool air, which is then circulated.
Note: Therm...
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$14.65
This genuine OEM replacement part is a bumper for your refrigerator. The bumper is made of orange rubber and measures less than half an inch in diameter. The bumper is used to prevent the fan motor fr...
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$76.45
This fan motor circulates the air through the refrigerator grille and cools the compressor and condenser coils. It also helps to evaporate extra water in the drain pan.
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Timothy
March 12, 2025
My freezer is working but the refrigerator doesn’t get below 55 degrees. The service man has changed the evaporator fan and blade, a thermistor, and a control board; fridge still not cooling. Is there any way to diagnose the problem without just changing parts?
For model number ZISB420DNBII
Hi Timothy, Thank you for reaching out. This could be a blocked or faulty damper. The damper regulates the flow of cold air from the freezer to the fresh food section. A faulty or blocked damper can cause an imbalance in temperature. We hope this solves your problem!
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Common Problems and Symptoms for ZISB420DNBII
Viewing 21 of 21Fridge too warm
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Noisy
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Freezer section too warm
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How to fix it
Not dispensing water
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Fridge too cold
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Freezer not defrosting
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Fridge and Freezer are too warm
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How to fix it
Ice maker not making ice
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Too warm
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Frost buildup
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Fridge runs too long
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Freezer too cold
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Leaking
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Will Not Start
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Ice maker dispenses too little ice
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Clicking sound
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Doesn’t stop running
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Ice maker won’t dispense ice
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Too cold
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Touchpad does not respond
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Won’t start
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
- Customer:
- michele from North Smithfield, RI
- Parts Used:
- WR55X10025
- Difficulty Level:
- Really Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Pliers
my refigerator was warm but the freezer was cold and working correcttly
I went to a GE repair center to explain my problem, the service center reccomended that I have a techinician come out o look at it. $75.00 for the visit and what ever labor and materials wuld cost.
I went on line to see if there were others having this same problem and found that there were many with the same problem.
... Read more />After reading some of the ways that people found out what was wrong ...it became a matter of three components, the timer, heater or thermostat.
I tried the most common component and the less expensive one first , the thermostat switch I installed it very easily snipping two wires and attaching the news using wire nuts I used the diagram on this website to pinpoint the component and there has not been a problem since.
I went on line to see if there were others having this same problem and found that there were many with the same problem.
... Read more />After reading some of the ways that people found out what was wrong ...it became a matter of three components, the timer, heater or thermostat.
I tried the most common component and the less expensive one first , the thermostat switch I installed it very easily snipping two wires and attaching the news using wire nuts I used the diagram on this website to pinpoint the component and there has not been a problem since.
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- Customer:
- Alfred from Novato, CA
- Parts Used:
- MWFP
- Difficulty Level:
- Really Easy
- Total Repair Time:
- Less than 15 mins
Replace water filter
Unscrew old filter and remove(counterclockwise). Line up arrow on new filter with arrow on connection housing. Turn clockwise till resistance met. Do not overtighten. Follow directions. Simple.
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- Customer:
- Larry from Menomonie, WI
- Parts Used:
- WR55X10025
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 15 - 30 mins
refrigerator was getting too cold
I removed the old temperature sensor by cutting the wires. I attached the wires of the new sensor with wire nuts and mounted it in the same bracket.
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