Written by
Maren Coleman Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeE03
ApplianceMicrowave
Keypad trouble
E03 on an over-the-range Whirlpool microwave means there may be a problem with the keypad, which Whirlpool also calls the user interface, or with the wiring connected to it.
Power reset
Turn the breaker off and wait one minute.
Turn it back on.
Monitor the microwave for one minute to see whether E03 comes back.
If the keypad code survives the reset, Whirlpool microwave repair is available in San Francisco and around the Bay Area. Call (415) 687-4102 with E03, the model number and a note on the reset.
Model compatibility: Whirlpool reuses codes across series and model years, so E03 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
E03 points to a possible problem with the keypad (user interface) 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.
