Written by
Tessa Brandt Appliance Care EditorPublished October 29, 2026
VERIFIED
Error code9D21
ApplianceWall Oven
About the 9D21 code
Maytag treats 9D21 as a latch-related message on a built-in wall oven. It names the latch assembly on the door, the door switch and the wiring that goes with them.
Clearing it, step by step
Turn the breaker off for a single minute.
Turn it on again.
Keep watching the display for a minute; 9D21 should not return.
Confirm the oven works.
A returning code means contacting a technician, who will check the latch, the switch and the wiring.
To get a Maytag built-in oven in San Francisco checked, phone (415) 649-2156 and say it is 9D21. Bring up the model number and the reset you tried. Details: Maytag wall oven repair.
Model compatibility: Maytag reuses codes across series and model years, so 9D21 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
Code 9D21 is a latch-related message pointing to the door latch assembly, the door switch, or the associated 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 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.
