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Whirlpool WP3405-001034 Microwave Door Switch (Interlock Microswitch) OEM Part

Manufacturer's Part Number: WP3405-001034
Genuine Whirlpool part
Appliance Compatibility Tool
$59.79
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Product Details

Genuine Whirlpool part. Whirlpool brands include Whirlpool, Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, Kenmore, and others.
Whirlpool also makes various appliance models for Sears / Kenmore.

Cross Reference Information

Part Number WP3405-001034 replaces AP6008546, 3405-001034, 4433709, PS11741686.

Description

This door interlock microswitch detects when the microwave door is fully closed and allows the unit to run only under safe conditions. Replacing a worn switch restores reliable starting and consistent operation tied to the door latch.
  • Monitors the door-latch position and completes the safety interlock circuit when the door is closed
  • Helps prevent operation with the door open
  • Common symptoms: microwave won't start or stops when the door is moved; requires pushing/jiggling the door to run
  • Contributes to "runs but no heat" or light/fan behavior that changes as the door is opened/closed
What's included: One door interlock microswitch Install notes:
  • Unplug the microwave before service; internal high-voltage components can retain a dangerous charge
  • Access the switch at the door-latch assembly; transfer wires one at a time to the new switch to maintain correct positions
  • Ensure the actuator aligns with the door latch and that the switch clicks freely when opening/closing the door
  • After reassembly, test with a microwave-safe cup of water to ensure proper operation
Note: Many microwaves use multiple door switches; each is sold individually.

This part fixes the following symptoms

  • No heat

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15-30 minutes

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Cross Reference Information

Whirlpool WP3405-001034 Microwave Door Switch (Interlock Microswitch) OEM Part

Part Number:
OEM18025647
Manufacturer's Part Number:
WP3405-001034
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