Written by
Maren Coleman Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeE13
ApplianceMicrowave
Pre-heat did not complete
An over-the-range Whirlpool microwave displays E13 after the oven fails to pre-heat as it should. Possible culprits named by Whirlpool are the Appliance Control Board and the wiring that serves it.
Reset from the manual
Breaker off, one minute.
Breaker on.
Stay near the unit for a minute, watching for the code again.
Check that the microwave operates.
Related codes
E23: the oven not reaching pre-heat temperature within 30 minutes.
If E13 appears again after the reset, Whirlpool microwave repair is the page for San Francisco and Bay Area owners; the line is (415) 687-4102. Have the code and the model number at hand.
Model compatibility: Whirlpool reuses codes across series and model years, so E13 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
E13 means the oven did not pre-heat correctly, possibly due to the Appliance Control Board or its wiring.
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.
