On the covered KitchenAid wall oven, 1D11, 1D12, 1D21, 1D22 means the oven is running too hot in Bake, Broil or Clean First, let the oven cool completely. Then: check the sensor and its wiring, then the elements, then the control.
Differential
Likely causes of “KitchenAid wall oven code 1D11, 1D12, 1D21, 1D22”, and how to tell them apart
- 1
The oven is running too hot in Bake, Broil or Clean
What separates it The code appears with a very hot cavity
How to confirm Switch off and let it cool
- 2
The temperature sensor wiring is faulty
What separates it The sensor reads wrongly
How to confirm Inspect the wiring with the power off
- 3
A relay stuck on the control
What separates it The oven keeps heating
How to confirm Cut power at the breaker
- 4
A one-off after a clean
What separates it The code appeared at the end
How to confirm Cool and reset
- 5
A control board fault
What separates it The sensor is fine
How to confirm The board is replaced last
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which cavity showed 1D11 on a double oven, and whether it was in Bake, Broil or Clean
- Whether the cavity kept heating after you cancelled
- Whether a self-clean or a long roast was running before the code
- The model number from the oven frame, on the left or right edge with the door open
Try in this order
0 of 9 completedWhat to do first
ReversibleLet the oven cool completely.
Correct only the documented fault domain
ReversibleCheck the sensor and its wiring, then the elements, then the control. A power reset is the whole of what KitchenAid publishes for this code: remove power for 1 minute, restore it, and watch whether the code returns.
Switch the oven off and cancel the cycle
ReversiblePress Cancel or Off, and do not open the door wide if the oven is very hot, since the heat can burn you.
Let the oven cool fully
ReversibleWait until the oven reaches room temperature, which can take several hours after a clean cycle, before you test or reset anything.
Cycle the breaker for a minute
ReversibleA wall oven is hard-wired, so the breaker is the reset. Switch it off for a minute and on again.
Check the sensor wiring
ReversibleWith the power off, look at the temperature sensor probe inside the oven and its wiring at the back for damage or a loose connector.
Run a short bake and watch the temperature
ReversibleBake at a moderate setting and compare the display with an oven thermometer on the middle rack.
Book service if 1D11 returns
ReversibleIf the code returns, a technician tests the sensor and the relays on the control, and replaces the part that has failed.
Open the door and look at the sensor
ReversibleWith the oven cool and the breaker off, look at the sensor probe at the back wall of the cavity. A bent probe or one touching the wall reads wrongly, and a gentle straightening can cure the code.
Model-specific
What is true of this model and not of its siblings
- The code on this page
- 1D11, an overheating oven.
- Parts involved
- The sensor, wiring and control.
- Related
- 1D12, 1D21 and 1D22 are in the group.
- Why the cavity matters
- A KitchenAid double wall oven has two independent cavities, each with its own sensor, relays and cooling. A 1D11 on the upper oven says nothing about the lower, so you can often keep using the other cavity while the first is repaired. Say which cavity showed the code when you call.
- Combination ovens
- On a combination wall oven with a microwave section, the oven and the microwave have separate control circuits and separate codes. 1D11 belongs to the oven side, so the microwave can usually carry on working.
Stop boundary
When this stops being a self-service repair
- !A double wall oven reporting 1D11 should be seen by KitchenAid service with the cavity named, since each cavity has its own sensor
- !Cut the hard-wired breaker if an element stays on, and keep the oven off until it is checked
- !Mention a recent self-clean, since the sensor and the lock are stressed by it
Evidence ledger
Sources behind this answer
Exact questions
Common questions
What does 1D11, 1D12, 1D21, 1D22 mean on a KitchenAid wall oven?+
the oven is running too hot in Bake, Broil or Clean
Will a reset fix it?+
A reset clears a one-off, but a code that returns means the sensor or the control has a fault.
Which cavity does it refer to?+
On a double oven the display or the guide names the cavity, so note which one was in use.
Is the sensor often the cause?+
Yes, a faulty temperature sensor is a common cause and is a modest part to replace.
Can I use the lower oven while the upper shows 1D11?+
In most cases yes, since each cavity is independent, but check the manual for your model.
Is a wall oven repair different from a range repair?+
The parts are similar, but a wall oven is hard-wired, so the breaker is the reset and a licensed technician should do any wiring.