Whirlpool Microwave Door Interlock Switch W11033422 — Fix Microwave That Won't Start

Whirlpool KitchenAid Microwave Interlock Switch W11033422 – Genuine OEM

Whirlpool Microwave Door Interlock Switch W11033422 — Fix Microwave That Won't Start

Sale price: $109
Regular price: $156.30
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Frequently Bought Together

Whirlpool Microwave Won't Start? Door Interlock Switch W11033422 – Fix Dead Microwave Fast

A failed door interlock switch is the most common cause of a Whirlpool or KitchenAid microwave that appears completely dead — no response when the start button is pressed, even though the door closes normally. In Whirlpool, KitchenAid, and Maytag microwaves, the door interlock switch is a safety mechanism that prevents the microwave from operating unless the door is fully latched. When it fails, the microwave’s control board receives no signal that the door is closed — and the unit will not start, heat, or respond to any input. ⚡ Common failure point in Whirlpool-built over-the-range and built-in microwave models. Part W11033422 is the genuine OEM replacement that supersedes W10358241 and WPW10358241, restoring full microwave operation immediately.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

✔ The microwave has power — the clock or display is on
✔ The door closes and latches physically (door is not broken)
✔ The control panel lights up but pressing Start does nothing
✔ ONLY problem is the microwave will not start or respond when the door is closed

Not sure? Send us your model number — we’ll confirm before you order.

🔧 Common Symptoms

Microwave will not start — pressing Start has no effect
Microwave was working, then suddenly stopped responding after closing the door
Display is on but no functions respond when door is closed
Microwave trips the breaker or blows a fuse when the door is closed
Microwave runs with the door open (interlock failed in the wrong position — safety hazard)

✔ If these symptoms match, this is the most likely failed component in the system.

✔ In most cases, replacing this interlock switch restores full microwave operation immediately.

📦 Part Details

Part Number: W11033422
Type: Microwave Door Interlock Switch — OEM Whirlpool replacement
Replaces: W10358241, WPW10358241, 461968971512
Brands: Whirlpool, KitchenAid, Maytag

⚠️ Recommended While Repairing:
Most Whirlpool microwaves have two or three interlock switches in the door latch assembly. When one fails, the others are often close behind — especially if the door has been slammed or the latch is worn. Inspect all interlock switches while the panel is open and replace any that show signs of burning, cracking, or mechanical wear. Replacing all switches at the same time prevents a repeat repair within weeks.

⚙️ Installation

Skill Level: Moderate — 20–40 minutes. HIGH VOLTAGE HAZARD — discharge the capacitor before any internal work. Unplug the microwave before servicing. Remove the outer cabinet or control panel to access the door latch assembly, locate the interlock switch, disconnect the wire terminals, and snap the new W11033422 switch into the latch housing. Reconnect terminals, reassemble, and test by closing the door and pressing Start.

✓ Compatible Models

Confirmed compatible with JMC2427DS00, JMC2430DS00, KEMS308SSS05, KEMS309BSS00, KMBP100ESS00, KOCE500ESS00, MMW9730AS00, WOC54EC0AS00, WOC75EC0HS00, WOC95EC0AS00, plus additional Whirlpool, KitchenAid, and Maytag microwave models. Contact us to verify your model number before ordering.

💡 Pro Tip

Replace All Three Switches — Not Just the Failed One:
Whirlpool microwaves typically use a 3-switch interlock system: a primary switch, a secondary switch, and a monitor switch. The monitor switch is a safety device — if the primary switch fails in the closed position, the monitor switch blows a fuse to prevent microwave radiation from escaping. If your microwave blew a fuse when the door was closed, the monitor switch likely triggered it. Always inspect and test all three switches and replace the fuse at the same time as the interlock switch to ensure the full safety system is restored.

✓ Model-Specific Repair Pages

WOC54EC0AS00 MMW9730AS00 KOCE500ESS00 KMBP100ESS00 KEMS309BSS00 KEMS308SSS05 JMC2430DS00 JMC2427DS00

✅Compatibility & Cross Reference

Part number W11033422 replaces 461968971512, W10358241, WPW10358241

JMC2427DS00, JMC2427DS01, JMC2427IL01, JMC2427IL02, JMC2427IL03, JMC2427IM01, JMC2427IM02, JMC2427IM03, JMC2427LL00, JMC2427LM00, JMC2430DB00, JMC2430DB01, JMC2430DB02, JMC2430DP00, JMC2430DP01, JMC2430DP02, JMC2430DS00, JMC2430DS01, JMC2430DS02, JMC2430IL01, JMC2430IL02, JMC2430IL03, JMC2430IL15, JMC2430IM01, JMC2430IM02, JMC2430IM03, JMC2430LL00, JMC2430LM00, JMC2430WB00, JMC2430WB01, JMC2430WB02, JMC2430WP00, JMC2430WP01, JMC2430WP02, JMC2430WR00, JMC2430WR01, JMC2430WS00, JMC2430WS01, JMC2430WS02, JMW2427LL00, JMW3430LM00, JMW3430WB00, JMW3430WB01, JMW3430WB02, JMW3430WB03, JMW3430WP00, JMW3430WP01, JMW3430WP02, JMW3430WP03, JMW3430WR00, JMW3430WR01, JMW3430WR02, JMW3430WS00, JMW3430WS01, JMW3430WS02, JMW3430WS03, KBHS109BSS00, KBHS109SSS06, KBHS179BSS00, KBHS179SSS06, KEHU309SSS04, KEHU309SSS05, KEHU309SSS06, KEMS308SBL05, KEMS308SSS05, KEMS308SWH05, KEMS309BBL00, KEMS309BBL01, KEMS309BSP00, KEMS309BSP01, KEMS309BSS00, KEMS309BSS01, KEMS309BWH00, KEMS309BWH01, KEMS378SBL05, KEMS378SSS05, KEMS378SWH05, KEMS379BBL00, KEMS379BBL01, KEMS379BSS00, KEMS379BSS01, KEMS379BWH00, KEMS379BWH01, KMBP100EBS01, KMBP100EBS02, KMBP100EBS03, KMBP100ESS00, KMBP100ESS01, KMBP100ESS02, KMBP100ESS03, KMBP107EBS01, KMBP107EBS02, KMBP107EBS03, KMBP107ESS00, KMBP107ESS01, KMBP107ESS02, KMBP107ESS03, KOCE500EBL00, KOCE500EBL01, KOCE500EBS00, KOCE500EBS01, KOCE500ESS00, KOCE500ESS01, KOCE500EWH00, KOCE500EWH01, KOCE507EBL00, KOCE507EBL09, KOCE507EBL11, KOCE507ESS00, KOCE507ESS09, KOCE507ESS11, KOCE507EWH00, KOCE507EWH09, KOCE507EWH11, MMW7730DE00, MMW7730DS00, MMW9730AB00, MMW9730AB01, MMW9730AB02, MMW9730AS00, MMW9730AS01, MMW9730AS02, MMW9730AW00, MMW9730AW01, MMW9730AW02, MMW9730FZ05, MMW9730FZ06, MMW9730FZ20, WOC54EC0AB00, WOC54EC0AB01, WOC54EC0AB02, WOC54EC0AB03, WOC54EC0AB04, WOC54EC0AB05, WOC54EC0AS00, WOC54EC0AS01, WOC54EC0AS02, WOC54EC0AS03, WOC54EC0AS04, WOC54EC0AS05, WOC54EC0AW00, WOC54EC0AW01, WOC54EC0AW02, WOC54EC0AW03, WOC54EC0AW04, WOC54EC0AW05, WOC54EC0HB00, WOC54EC0HB01, WOC54EC0HB02, WOC54EC0HB03, WOC54EC0HB04, WOC54EC0HB20, WOC54EC0HS00, WOC54EC0HS01, WOC54EC0HS02, WOC54EC0HS03, WOC54EC0HS04, WOC54EC0HS20, WOC54EC0HW00, WOC54EC0HW02, WOC54EC0HW03, WOC54EC0HW04, WOC54EC0HW20, WOC54EC7AB00, WOC54EC7AB01, WOC54EC7AB02, WOC54EC7AB03, WOC54EC7AB04, WOC54EC7AS00, WOC54EC7AS01, WOC54EC7AS02, WOC54EC7AS03, WOC54EC7AS04, WOC54EC7AW00, WOC54EC7AW01, WOC54EC7AW02, WOC54EC7AW03, WOC54EC7HB00, WOC54EC7HB01, WOC54EC7HB02, WOC54EC7HB03, WOC54EC7HB04, WOC54EC7HB20, WOC54EC7HS00, WOC54EC7HS01, WOC54EC7HS02, WOC54EC7HS03, WOC54EC7HS04, WOC54EC7HS20, WOC54EC7HW00, WOC54EC7HW01, WOC54EC7HW02, WOC54EC7HW03, WOC54EC7HW04, WOC54EC7HW20, WOC75EC0HB00, WOC75EC0HB01, WOC75EC0HS00, WOC75EC0HS01, WOC75EC0HS02, WOC75EC0HS03, WOC75EC0HS04, WOC75EC0HS20, WOC75EC0HV01, WOC75EC0HV02, WOC75EC0HV03, WOC75EC0HV04, WOC75EC0HV20, WOC75EC0HW00, WOC75EC0HW01, WOC75EC7HS00, WOC75EC7HS01, WOC75EC7HS02, WOC75EC7HS03, WOC75EC7HS04, WOC75EC7HS20, WOC75EC7HS21, WOC75EC7HS22, WOC75EC7HV00, WOC75EC7HV01, WOC75EC7HV02, WOC75EC7HV03, WOC75EC7HV04, WOC75EC7HV20, WOC95EC0AB00, WOC95EC0AB01, WOC95EC0AB02, WOC95EC0AB03, WOC95EC0AB04, WOC95EC0AB05, WOC95EC0AE00, WOC95EC0AE01, WOC95EC0AH00, WOC95EC0AH01, WOC95EC0AH02, WOC95EC0AH03, WOC95EC0AH04, WOC95EC0AS00, WOC95EC0AS01, WOC95EC0AS02, WOC95EC0AS03, WOC95EC0AS04, WOC95EC0AS05, WOC95EC0AW00, WOC95EC0AW01, WOC97EC0HZ00, WOC97EC0HZ01, WOC97EC0HZ02, WOC97EC0HZ03, WOCA7EC0HN00, WOCA7EC0HN01, WOCA7EC0HN02, WOCA7EC0HN03, WOCA7EC0HZ00, WOCA7EC0HZ01, WOCA7EC0HZ02, WOCA7EC0HZ03

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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