Error code reference

KitchenAid Microwave Error Code ERROR

Displayed when the AH (Absolute Humidity) sensor bridge circuit cannot be balanced due to sensor disconnection, or when the sensor has not detected food vapor during sensor cooking, or when the door is opened or STOP/CLEAR is touched during the first stage of sensor cooking.

SourceKitchenAid Over-the-Counter Microwave - Job Aid: KOMS155MBLp. 3-4, 6-6

Diagnostic procedure

The full ERROR procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Perform the Water Load Cooking Test (page 6-6) to determine if the AH sensor or control unit is defective; replace AH sensor first as simplest diagnostic method.

SourceKitchenAid Over-the-Counter Microwave - Job Aid: KOMS155MBLp. 3-4, 6-6

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented

4 manuals in the MyPros+ library document this code for KitchenAid microwave.

Models covered by the manuals that document this code

More models are covered than are listed here.

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