XPARTCO WB24X10146 Microwave Door Switch
The XPARTCO WB24X10146 is an aftermarket replacement micro switch (also called a door interlock switch) compatible with a wide range of GE, Hotpoint, RCA, Kenmore, and Sears over-the-range and countertop microwaves. This is a "stand on" style normally-open (NO) interlock switch, identified by the internal designation KW3A-NO, that mounts near the door latch and only closes its circuit when the door is fully shut and latched. The control board reads this switch as part of a multi-switch safety interlock chain that confirms the door is secure before allowing the magnetron to energize.
When this switch fails, the microwave commonly won't start at all, trips a door-related error code, or in rare cases can allow the unit to run with the door not fully secured — which is a safety-relevant fault, not just a convenience one. It directly replaces WB24X10146, WB24X28941, MW-7100-33, AGE22794, AH1019163, AP3866977, 1166990, EA1019163, EAP1019163, PD00039881, PS1019163. Installs in 15–20 minutes with basic hand tools.
Quick Answer
The XPARTCO WB24X10146 Microwave Door Switch fixes GE, Hotpoint, RCA, and Kenmore/Sears microwaves that won't start, display a door-related error code, or have a door that doesn't reliably confirm as closed. Normally-open (NO) "stand on" interlock switch, rated 250VAC / 16A, with 0.187" (4.7mm) quick-connect terminals. Replaces WB24X10146, WB24X28941, MW-7100-33, AGE22794, AH1019163, AP3866977, 1166990, EA1019163, EAP1019163, PD00039881, PS1019163. Classic symptom: turntable light and display work, but pressing Start does nothing.
Common Problems This Part Fixes
- Microwave won't start when Start is pressed, even though the display and light work
- Door-related error code or fault light on the display
- Microwave randomly shuts off mid-cycle
- Door feels like it isn't latching or registering as closed
- Clicking sound from the door area with no response from the microwave
- Intermittent operation that seems tied to how hard the door is closed
Cross Reference Information
Part numbers can change over a product's lifecycle as manufacturers update designs or release new appliance models. For your convenience, we've included any known superseded, alternate, or cross-reference part numbers that match this item.
Replaces Part Numbers
This microwave door switch directly replaces the following OEM and cross-reference part numbers:
WB24X10146, WB24X28941, MW-7100-33, AGE22794, AH1019163, AP3866977, 1166990, EA1019163, EAP1019163, PD00039881, PS1019163
If your part number is not listed above, contact our support team before ordering and we will verify compatibility.
Compatibility
This door switch is compatible with a wide range of GE-built microwaves across the following brands:
- GE over-the-range and countertop microwaves (JVM, PVM, and CEB series, including JEM3072DH1BB, JEM3072SH1SS, JNM3161DF2BB, and CCWK15C1W1DS/SS)
- Hotpoint microwaves (GE-built models)
- RCA microwaves (GE-built models)
- Kenmore and Sears microwaves (select GE-built models)
Note: Do not confuse this with the similarly styled EXP499/EXP497 microwave door switches, which also use 4.7mm terminals but are not the same switch. WB24X10146 is a "stand on" style switch specific to GE's own interlock design — always match by part number, not terminal size alone. Always verify your appliance model number before ordering.
Key Features
- Normally-open (NO) "stand on" door interlock switch, internal designation KW3A-NO
- Resolves "won't start," "door error code," and "shuts off mid-cycle" symptoms caused by interlock switch failure
- Rated 250VAC / 16A for reliable switching under microwave load
- 0.187" (4.7mm) quick-connect terminals for a secure wire connection
- Direct-fit mounting to match the original interlock bracket
- Replaces WB24X10146, WB24X28941, MW-7100-33, AGE22794, AH1019163, AP3866977, 1166990, EA1019163, EAP1019163, PD00039881, PS1019163
- Compatible with GE, Hotpoint, RCA, Kenmore, and Sears microwaves across dozens of models
- Aftermarket replacement built to OEM-equivalent quality and safety standards
Product Specifications
| Part Number | XPWB24X10146 |
| OEM Part Number | WB24X10146 |
| Part Type | Microwave Door Interlock Switch ("Stand On" / KW3A-NO) |
| Condition | Aftermarket Replacement |
| Switch Type | Normally Open (NO) |
| Voltage Rating | 250VAC |
| Current Rating | 16A |
| Terminal Width | 0.187" (4.7mm) |
| Compatible Brands | GE, Hotpoint, RCA, Kenmore, Sears |
Installation Notes
Frequently Asked Questions
My microwave's display and turntable light work, but it won't start — is this the part?
This is a classic symptom of a failed door interlock switch. The control board needs a confirmed "door closed and latched" signal from all switches in the interlock chain before it will energize the magnetron. If that signal is missing from even one switch, most GE microwaves will power up normally but refuse to start a cook cycle. Confirm with a multimeter continuity test on the suspect switch before ordering, since GE microwaves usually use more than one interlock switch.
Is this the same as the EXP499 or EXP497 microwave door switch?
No — while all three use similar 4.7mm terminals, they are different switches used in different microwave platforms and are not interchangeable. WB24X10146 is GE's own "stand on" KW3A-NO design. Always match by part number rather than terminal size or general appearance.
Is it safe to keep using the microwave if I suspect this switch is bad?
We'd recommend not continuing to use it until it's repaired. Door interlock switches exist specifically to prevent microwave energy from leaking out while the door is open or not fully latched. If a switch is failing intermittently, the microwave may seem to work sometimes, but that's not a reason to keep using it — replace the switch before further use, and never attempt to bypass or jumper an interlock switch.
How many interlock switches does my GE microwave have, and do I need to replace them all?
Most GE microwaves use two or three interlock switches wired in sequence (often a primary switch, a secondary/monitor switch, and sometimes a door sensing switch). You typically only need to replace the specific switch that's testing bad, but if one has failed from age or wear, the others are often not far behind — some technicians replace the full set at once to avoid a repeat repair call.
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