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429056-1-S-Frigidaire-218845901         -KNOB
429056-1-S-Frigidaire-218845901         -KNOB 429056-2-S-Frigidaire-218845901         -KNOB 429056-3-S-Frigidaire-218845901         -KNOB http://www.partselect.com/Schematics/Frigidaire/ZZNQCLRF.gif

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PartSelect Number PS429056
Manufacturer Part Number 218845901
Manufactured by Frigidaire

This part works with the following brands: Frigidaire, Kenmore, Tappan, Gibson, Uni.

This part works with the following products: Refrigerator.

Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 2.3 / 5.0, 1 reviews What's this?
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30 of 41 people found this instruction helpful

Parts Used:
Level of Difficulty: A Bit Difficult
Time to do repair: 1- 2 hours
Tools: Nutdriver, Screw drivers
Customer: David from Fleetwood, PA

Freezer / refrigerator warm (not defrosting)

I checked the defrost timer (bottom front of the freezer / outside). I advanced it to send it into the defrost cycle. The heating elements in the freezer (behind the panel) did not heat up. I cut the wires going to the defrost thermostat. Turned the power back on, made sure the defrost timer was still in the defrost cycle and checked the voltage at the wires to the defrost thermostat (before the heating elements). There was power / voltage there. I jumped out / bypassed the defrost thermostat turned the power back on and the heating elements came on. The problem was the defrost thermostat. So I replaced it with a new one from PartSelect.com. How it works...
When the defrost timer is advanced to the defrost cycle the switch closes sending power to the defrost thermostat. If the temperature is low enough, the defrost thermostat switch will close and sends power to the heating elements. When the temperature rises high enough about 55 degrees the switch at the thermostat will open and the heating elements will turn off (not allowing the freezer temperature to get too high, just enough to defrost the coil). The refrigerator will turn back on when the timer advances. The defrost timer will defrost every 8-12 hours.

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Model Cross Reference

This part works with the following models:

PartSelect Number: PS429056
Manufacturer Part Number: 218845901
Brand Model Number Description
Kenmore25358672891Refrigerator
Kenmore25358672892Refrigerator
Kenmore25358672893Refrigerator
Kenmore25358672894Refrigerator
Kenmore25358672895Refrigerator
Kenmore25358672896Refrigerator
Kenmore25358677890Refrigerator
Kenmore25358677892Refrigerator
Kenmore25358677893Refrigerator
Kenmore25358677894Refrigerator
Kenmore25358677895Refrigerator
Kenmore25358677896Refrigerator
GibsonGRS26ZRGW0Refrigerator - Side-by-side
GibsonGRS26ZRGW1Refrigerator - Side-by-side
GibsonGRS26ZRGW2Refrigerator - Side-by-side
GibsonGRS26ZRGW5Refrigerator - Side-by-side
FrigidaireMRS20WRGW0Refrigerator - Side-by-side
FrigidaireMRS20WRGW1Refrigerator
FrigidaireMRS20WRGW2Refrigerator
FrigidaireMRS22WHHW0Refrigerator - Side-by-side
FrigidaireMRS22WHHW1Refrigerator - Side-by-side
FrigidaireMRS22WNGW0Refrigerator
FrigidaireMRS22WNGW1Refrigerator
FrigidaireMRS22WNGW2Refrigerator
FrigidaireMRS22WNGW3Refrigerator
UniMRS22WNGW4Refrigerator
UniMRS22WNGW5Refrigerator
FrigidaireMRS22WNGW6Refrigerator
FrigidaireMRS22WNGW7Refrigerator
TappanTRS20WRHW0Refrigerator - Side-by-side