Kenmore 721.80373 Elite Over-the-Range Microwave DOOR SWITCH FAIL Error Fix: Door Switch Failure

Microwave won't start or runs with door open (SAFETY HAZARD). Microwaves have 3 door interlock switches. A failed switch can prevent operation or cause a blown fuse. Replace all door switches as a set.

High severity2 fixes available✨ Free fix available

Quick Answer

Error DOOR SWITCH FAIL on the Kenmore 721.80373 Elite Over-the-Range Microwave means: Door Switch Failure. The top-ranked community fix is “Replace All Door Interlock Switches as a Set” (hard difficulty, ~60 min, DIY cost: $20-$35). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · microwave

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many microwave repairs can be done safely at home, consider hiring a qualified technician if:

This is a high severity error — continued use may cause damage or a safety hazard
The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $180-$250.

Other Kenmore 721.80373 Elite Over-the-Range Microwave Error Codes

Oven Sensor Open

Oven Sensor Shorted

Touch Pad / Keypad Shorted

2 fixes

F-4

Humidity Sensor Fault

2 fixes

F-5

Control Board Error

2 fixes

Inverter or Magnetron Error

2 fixes

TURNTABLE STUCK

Turntable Motor Failure

2 fixes

WAVEGUIDE SCORCHED

Waveguide Cover Scorched

2 fixes

People Also Ask About Kenmore 721.80373 Elite Over-the-Range Microwave Error DOOR SWITCH FAIL

What does error code DOOR SWITCH FAIL mean on a Kenmore 721.80373 Elite Over-the-Range Microwave?

Error code DOOR SWITCH FAIL on the Kenmore 721.80373 Elite Over-the-Range Microwave means: Door Switch Failure. Microwave won't start or runs with door open (SAFETY HAZARD). Microwaves have 3 door interlock switches. A failed switch can prevent operation or cause a blown fuse. Replace all door switches as a set.

How do I fix error code DOOR SWITCH FAIL on my Kenmore 721.80373 Elite Over-the-Range Microwave?

The most successful fix is "Replace All Door Interlock Switches as a Set" (hard difficulty, ~60 minutes). Estimated DIY cost: $20-$35. HomeMD has 2 community-ranked fixes for this error.

Is error code DOOR SWITCH FAIL on a Kenmore 721.80373 Elite Over-the-Range Microwave serious?

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Can I fix Kenmore 721.80373 Elite Over-the-Range Microwave error DOOR SWITCH FAIL myself?

Yes — the top-ranked community fix ("Replace All Door Interlock Switches as a Set") is rated hard difficulty and takes about 60 minutes. Tools needed: Phillips screwdriver, Needle-nose pliers.

How much does it cost to repair Kenmore 721.80373 Elite Over-the-Range Microwave error DOOR SWITCH FAIL?

DIY cost: $20-$35. Professional repair typically costs $180-$250. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Kenmore 721.80373 Elite Over-the-Range Microwave have?

The Kenmore 721.80373 Elite Over-the-Range Microwave has 8 other known error codes, including: F-1 (Oven Sensor Open), F-2 (Oven Sensor Shorted), F-3 (Touch Pad / Keypad Shorted), F-4 (Humidity Sensor Fault), F-5 (Control Board Error), and 3 more.

What other error codes does the Kenmore 721.80373 Elite Over-the-Range Microwave have?

The Kenmore 721.80373 Elite Over-the-Range Microwave has 8 other known error codes:

F-1 — Oven Sensor Open (2 fixes)
F-2 — Oven Sensor Shorted (2 fixes)
F-3 — Touch Pad / Keypad Shorted (2 fixes)
F-4 — Humidity Sensor Fault (2 fixes)
F-5 — Control Board Error (2 fixes)
SE — Inverter or Magnetron Error (2 fixes)
TURNTABLE STUCK — Turntable Motor Failure (2 fixes)
WAVEGUIDE SCORCHED — Waveguide Cover Scorched (2 fixes)

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