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Customer Questions and Answers for Refrigerator Defrost Timer by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM17955633
Manufacturer Part Number: W10822278

Fixes ice buildup on freezer coils and warm fridge temps. This defrost timer regulates the automatic defrost cycle. Moderate DIY repair with video guide.

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Questions & Answers

For Whirlpool Refrigerator Defrost Timer (Part Number: OEM17955633)

1 Answer

Hello Chris,

On the defrost timer the black lead wire will go to terminal that has the 1 on it.

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1 Answer

Hello Ricky,

When you remove the kickplate the defrost timer will be on left hand side behind the frame held in by 2 screws.

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1 Answer

Hello Marie. Make sure the condenser coils are clean and the condenser fan motor is running. If so, it is normal for fluctuation during the defrost cycle.

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1 Answer

Hello Rick. For continuous run timer
push slotted loose timer
motor lead over & all the
way down terminal
number 1 with wire
toward timer motor.

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1 Answer

Hello Perry,

The black wire should be slipped onto the terminal on the defrost timer labeled as number 1.

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1 Answer

Hello Stan,

If the noise is coming from the freezer side then it would not be an issue with the defrost timer. It may be a flow of refrigerant issue that is causing the cap tube to jump and make tapping noise. What you would want to do is pull the rear wall of the freezer and check to make sure that the lines are not touching the wall. If this checks ok pull unit out and listen for the compressor making the banging noise. If the compressor is making noise then compressor would need to be replaced.

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1 Answer

Hello Doug,

The defrost timer is located in the back lower left corner as you are looking at the unit from the back.

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Jim for Model Number GR9FHKXPB00 Whirlpool Refrigerator

Please help regarding replacement defrost timer #482493. I've received two different answers from your help dept. regarding which terminal to place the extra black wire. The first answer was on terminal #1 which connects to the orange wire in the harness. I replied today stating I'm still having trouble with the timer sticking in defrost mode, and I have to manually turn it with a screwdriver to get it going again, and it will run okay for a few days. The person who answered my question today says the black wire on the timer should be placed on terminal #2. A third opinoin would be greatly appreciated before I try terminal #2, as I don't want to damaged the timer if I haven't already done so by placing the black wire on terminal #1.

1 Answer

Hello Jim. Sorry for the confusion, but according to the wiring diagram for your model, the black wire goes to terminal number 1 of the timer.

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1 Answer

Hello Nan,

The first thing you should do is check the continuity of the heater and defrost thermostat. If both have continuity then you would want to change the defrost timer W10822278. If the heater does not have continuity then you would replace heaterWP2315530. If the bimetal when cold does not have continuity then you would replace the bimetal WP4387503. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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1 Answer

Hello Sunder,

What you will need to check is the continuity of the defrost heater WP2323197 and defrost bimetal WPW10225581. If you have continuity through both then you need to replace the timer W10822278. If there is no continuity through the heater then the heater would need to be replaced. If no continuity through the bimetal with the bimetal being in the frost then you would need to replace the bimetal. To access the timer you would pull the knobs out. Take a flat blade screwdriver behind the cover of the control panel and pop cover loose. Then you remove the 2 screws at the top of the control panel and 2 at the back of the control panel. Remove the 2 phillips head screws under the timer and make sure you have disconnected power to unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html

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