Written by
Maren Coleman Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeE23
ApplianceMicrowave
Half an hour is the limit. When the oven side of an over-the-range Whirlpool microwave cannot get up to pre-heat temperature in that time, it shows E23.
What may be behind it
the Heater
the Appliance Control Board
the wiring that connects them
One-minute reset
Turn the circuit breaker off and keep it off for one minute. Switch it on again, then watch the display for another minute. If the code stays away, run the microwave once to check normal operation.
Compare with
E13: the oven did not pre-heat correctly, with the control board or wiring named.
E24: the opposite situation, an overheat condition of 500F (260C).
A repeat of E23 calls for a technician visit. Phone (415) 687-4102 from anywhere in the Bay Area, and keep the model number and your reset notes within reach. Whirlpool microwave repair has the broader picture.
Model compatibility: Whirlpool reuses codes across series and model years, so E23 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
E23 means pre-heat temperature was not reached within thirty minutes.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Whirlpool appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Whirlpool appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
