MICROWAVE WILL NOT START OR MAY STOP UNEXPECTEDLY BECAUSE THE CONTROL DOES NOT RECEIVE THE EXPECTED DOOR-CLOSED SIGNAL
Whirlpool Microwave Interlock Switch Kit / Interlock Switch Service Kit LP W11493414, Fixes Microwave will not start or may stop unexpectedly because the control does not receive the expected door-closed signal
Genuine Whirlpool interlock switch kit used in selected Whirlpool and KitchenAid microwave, microwave/hood-combo, compact microwave/hood-combo, and built-in microwave models.
Part W11493414Replaces W11479930Whirlpool
Guaranteed to Fit — or your money back.
Confirm your full appliance model number before ordering.
Confirm your full appliance model number before ordering.
Is This the Right Part?
Part NumberW11493414
ReplacesW11479930
ManufacturerWhirlpool
Appliance TypeMicrowave
Part TypeInterlock Switch Kit / Interlock Switch Service Kit LP
✅ Cross Reference Information
Current Part NumberW11493414
ReplacesW11479930
Common Symptoms
- Microwave does not start when Start is pressed
- Microwave stops during operation when the door or latch position changes
- Door-related error or refusal to run despite the door appearing closed
- Intermittent operation associated with door or latch movement
Check Before Replacing
- Confirm the door closes fully and the latch hooks engage without unusual looseness or obstruction.
- Inspect the door-latch area for visible damage, misalignment, or debris without disassembling the microwave.
- Observe whether the symptom changes when the door is gently closed normally; do not force, slam, or support the door in a partially closed position.
- Verify the exact appliance model before ordering because interlock components are model-specific.
- Do not bypass, jumper, or operate the microwave with damaged or defeated safety switches; internal microwave service should follow the model-specific service documentation and qualified-service precautions.
Pro Tip
If the microwave has a door-related symptom, check door and latch alignment before replacing the interlock kit; a misaligned latch can prevent the switch from being actuated correctly.
Part Details
Part NumberW11493414
Part TypeInterlock Switch Kit / Interlock Switch Service Kit LP
ManufacturerWhirlpool
Appliance TypeMicrowave
Primary FunctionSenses microwave door closure and latch position as part of the microwave safety interlock circuit, allowing operation only when the door is properly closed and latched.
Installation Notes
- Disconnect electrical power before servicing.
- Match the replacement to the exact microwave model and serial information.
- Follow the appliance-specific service instructions for switch positioning, wiring, and door-latch alignment.
- Ensure electrical connectors and the switch assembly are correctly seated before restoring power.
- Never bypass the microwave safety interlock system; if cabinet access or high-voltage service is required, use a qualified technician.
Verified Compatible Models
KMBT5011KSS01, KMLS311HSS08, KMLS311HSS9, KMLS311HWH8, WML55011HB08, WMT55511KS0, YKMLS311HBL8, YKMLS311HBL09, YKMLS311HBS09, YKMLS311HSS08, YWML55011HW7, YWML55011HW08, YWML75011HN10, YWML75011HV11, YWML75011HW11
Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.
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