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Customer Questions and Answers for Defrost Timer (162-3) by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18049623
Manufacturer Part Number: WPW10185975

This mechanical defrost timer automatically switches the refrigerator between cooling and defrost cycles. Replacing a failing timer helps clear evaporator frost so temperatures remain stable and cooling performance is consistent. What it does:

  • Initiates the defrost cycle at regular intervals and then returns the system to cooling
  • Interrupts compressor power and energizes the defrost heater during defrost
  • Helps prevent heavy frost buildup on the evaporator
  • Common failure symptoms include thick frost on the evaporator/back wall, warming in the fresh food section, the unit running constantly or getting stuck in defrost, or repeated clicking from the control area
What's included:
  • 1 defrost timer
Install notes:
  • Disconnect power before servicing; components in the defrost circuit can be live and hot
  • Access locations vary by model
  • Note or photograph wire positions; transfer wires one at a time to the new timer
  • Secure the timer in the original bracket/orientation and reassemble before restoring power

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$141.57
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$167.05
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Questions & Answers

For Whirlpool Defrost Timer (162-3) (Part Number: OEM18049623)

1 Answer

Hello Leslie, the timer does not come with and Instruction sheet, however we have a repair video at this link,https://www.youtube.com/watch?v=1oqIJZKruF4.

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1 Answer

Hello Doug. If the ignitor is not coming on the rest of the cycle, then yes the timer is bad and will need to be replaced on the unit.

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1 Answer

Michael, The problem would be inside the timer WPW10185975, but before you replace the timer, pull the timer knob WPW10192635 off the timer and check to see if the center hub is cracked, broken, or the knob has been forced on improperly.

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