KitchenAid Microwave Error Code E23: Meaning and Fix
Reading the microwave display
On a microwave the code replaces the clock on the display. Unplug the unit for a minute to see if it clears, and note the code before you do. KitchenAid pairs the number with a letter group in the manual, so match the exact characters.
KitchenAid is Whirlpool Corporation's premium appliance line. Its dishwashers, ranges, microwaves and refrigerators share Whirlpool boards but use their own panel layouts and numbering in the manuals. The codes apply to model numbers such as KUDS24SEWH1, KUDS01DJSS0 and KHMS155LSS4; check the label on your unit to confirm yours.
What causes E23
- Heating element or burner has burned out or shorted
- Igniter is weak or will not glow
- Relay on the control board that powers the heater has failed
- Gas supply or valve is not delivering fuel
- High-limit device or thermal fuse has opened
How to fix it
- Cycle the power: unplug the microwave (or switch off its breaker) for one minute, restore power and test it briefly with a cup of water.
- Before opening any panel, switch off the breaker or unplug the appliance; this circuit can carry line voltage.
- Confirm the power supply is correct (both legs of the 240 V circuit on electric units) or that the gas shutoff is open on gas units.
- Inspect the element, igniter or burner for visible blistering, cracks or debris.
- With power disconnected, test the element or igniter for continuity with a multimeter; infinite resistance means it has failed.
- Replace the failed heater, igniter or limit device, then run a short test cycle to verify heat.
- Run a full short cycle or function again and confirm the code stays gone before putting the appliance back into normal use.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Fuse Thrml | W11707984 | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
What does E23 mean on a KitchenAid microwave?
It is a fault code from the KitchenAid control. It indicates a problem with the heating circuit. A power reset is the first thing to try.
Can I keep using the microwave while it shows E23?
Stop using it until it has been checked. This fault involves heat, high voltage or sealed-system parts, and running it can damage the appliance or create a safety risk.
Do I need a technician to clear E23?
Often yes. Part of this repair means testing live circuits or replacing a control board, so a technician is the safer choice unless you are comfortable with electrical diagnosis.
Other KitchenAid microwave codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including KHMS155LSS4, KHMS155LSS1, KHMS155LSS0, KHMS1850SSS0, KHMS145JWH0, KHMS145KSS0, KHMS155LSS3, KHMS2050SSS0.