WP4375321 Microwave Line Fuse
WP4375321 Microwave Line Fuse

Whirlpool Line Fuse - Microwave WP4375321, Replaces 4375321, 14211079

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MICROWAVE IS COMPLETELY DEAD BECAUSE THE LINE FUSE HAS OPENED

Whirlpool Line Fuse - Microwave WP4375321, Replaces 4375321, 14211079, Fixes Microwave is completely dead because the line fuse has opened

Genuine Whirlpool OEM microwave line fuse used to protect the microwave circuit from excessive current. The part is sold for Whirlpool-family microwave appliances, including Whirlpool, Maytag, JennAir, KitchenAid, and IKEA models.

Part WP4375321Replaces 4375321, 14211079Whirlpool

Genuine Whirlpool OEM microwave line fuse used to protect the microwave circuit from excessive current. The part is sold for Whirlpool-family microwave appliances, including Whirlpool, Maytag, JennAir, KitchenAid, and IKEA models.

Is This the Right Part?

Part NumberWP4375321
Replaces4375321, 14211079
ManufacturerWhirlpool
Appliance TypeMicrowave
Part TypeLine Fuse - Microwave

✅ Cross Reference Information

Current Part NumberWP4375321
Replaces4375321, 14211079

Common Symptoms

  • No display or interior light
  • Microwave will not start or run
  • Fuse tests open or shows no continuity when checked by a qualified technician

Check Before Replacing

  • Confirm the appliance has no incoming power by checking the breaker or outlet without opening the microwave.
  • If service access is required, disconnect power at the breaker or unplug the appliance before inspection.
  • A qualified technician may test the removed fuse for continuity and verify that its rating matches the appliance documentation.
  • If the fuse is open, investigate the underlying fault before replacing it; do not repeatedly replace a fuse that fails again.
  • Do not bypass, jumper, or install a fuse with a different rating.

Pro Tip

A blown line fuse may be a symptom of another electrical fault, so replacing the fuse alone may not resolve repeated failures.

Part Details

Part NumberWP4375321
Part TypeLine Fuse - Microwave
ManufacturerWhirlpool
Appliance TypeMicrowave
Primary FunctionProtects the microwave’s incoming power circuit by opening the circuit during excessive current or a short-circuit condition.
Cross References4375321, 14211079

Key Features

  • Genuine Whirlpool OEM microwave line fuse
  • 20-amp, 250-volt ceramic fuse specification documented by a U.S. product listing
  • Protects the incoming appliance circuit from excessive current
  • One fuse included

Installation Notes

  • Disconnect power at the breaker or unplug the appliance before service.
  • Microwaves contain high-voltage components that may retain a dangerous charge even after the appliance is unplugged; internal service should be performed by a qualified technician.
  • Replace only with the same type and electrical rating specified for the appliance.
  • Seat the fuse securely in its existing holders and never bypass the fuse.

Verified Compatible Models

GMC275PDB0, GMC275PDB1, GMC275PDB2, GMC275PDB3, GMC275PDB4, GMC275PDB5, GMC275PDB6, GMC275PDB07, GMC275PDQ0, GMC275PDQ1, GMC275PDQ2, GMC275PDQ3, GMC275PDQ4, GMC275PDQ5, GMC275PDQ07

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.

✅Compatibility & Cross Reference

4375321, 14211079

GMC275PDB0, GMC275PDB1, GMC275PDB2, GMC275PDB3, GMC275PDB4, GMC275PDB5, GMC275PDB6, GMC275PDB07, GMC275PDQ0, GMC275PDQ1, GMC275PDQ2, GMC275PDQ3, GMC275PDQ4, GMC275PDQ5, GMC275PDQ07

Not sure about your model number? Call 1-877-899-7278 and we’ll help you confirm. All brand names are the property of their respective owners and are used for compatibility reference only.

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