Code overview
- Error code
- 4D21
- Appliance
- Wall Oven
Maytag wall oven code 4D21: what the display means and the power reset steps to try.
What this code means
4D21
Cooling fan speed too low. There may be a problem with an airflow restriction, the oven cooling fan, or the associated wiring.
When 4D21 appears, Maytag’s product help is talking about that airflow may be restricted, or that the cooling fan or its wiring may be at fault. The help text adds: cooling fan speed too low.
What the manual says to do
- Cut power at the breaker(s) for a full minute.
- Power the oven back up at the breaker(s).
- Observe the oven for one minute and note whether 4D21 displays once more.
- Make sure the oven operates.
Should the same code reappear, schedule service. Do not try to test controls or wiring yourself.
Compare with these codes
- 4D22: a fan speed message with the same airflow wording.
- 4D41: a related oven cooling fan code.
- 4D42: concerns the cooling fan and airflow.
LA service for Maytag wall ovens
We service Maytag wall ovens in Los Angeles. Call (310) 882-7671 or see our oven repair page, and have the code 4D21, the model number and your reset attempt ready.
Source: 4D21 Wall Oven – Product Help
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.
Sources & references
Tell us what’s wrong — we’ll take it from there
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