Written by
Tessa Brandt Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeF4 E9
ApplianceMicrowave
What F4 E9 means
Should an over-the-range Maytag microwave show F4 E9, Maytag’s suspects are the Smart Pop control and the wiring running to it.
Owner steps
At the panel, flip the microwave’s breaker off and let sixty seconds pass.
Flip it on again.
Watch the display for a minute; F4 E9 should not reappear.
Make sure the microwave operates.
If F4 E9 returns
The next step is a technician visit, since the control and its wiring cannot be tested from outside.
Similar-looking codes
F4 E4 covers the humidity thermistor, F6 the relay control board, and F6 E0 the appliance control board.
Maytag microwave service, San Francisco Bay Area
To arrange Maytag microwave repair in San Francisco or elsewhere around the Bay, call (415) 649-2156 with F4 E9, the model number and the reset you tried.
Model compatibility: Maytag reuses codes across series and model years, so F4 E9 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
The Smart Pop control or its associated wiring may have a problem.
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 Maytag appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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 Maytag appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
