Written by
Tessa Brandt Appliance Care EditorPublished October 29, 2026
VERIFIED
Error code3D12
ApplianceRange
3D12 on a Maytag range
This code covers three possible sources: the oven temperature sensor, the control and the associated wiring. Maytag does not tie it to a specific series.
Resetting
Disconnect power at the circuit breaker(s), and give it one minute.
Reconnect power at the breaker(s).
Spend a minute monitoring the oven for 3D12.
Check the oven operates.
Outcome
When 3D12 shows once more, a technician needs to look at the oven. Because Maytag names three possible places rather than one, the display by itself will not say which part is at fault. Before booking, write down the model number and whether the code reappeared during the minute of monitoring.
Compare
3D11 is the previous entry and names the same parts. 3D21 reads the same and takes the same reset. 1D12 is its 1D relative.
Maytag range repair in San Francisco
Technicians from our team visit Maytag ranges in San Francisco and the surrounding Bay Area. Call (415) 649-2156; tell us 3D12, the model number and what you tried. The Maytag range repair page covers more.
Model compatibility: Maytag reuses codes across series and model years, so 3D12 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
Maytag lists 3D12 as a possible oven temperature sensor, control or wiring 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.
