Wolf Range Error Code 3E21
The status and the data register of the low voltage control output pins are not equal (right relay board).
SourceWolf 30" and 36" Induction Range with Dual VertiFlow™: After Serial 18745023 (Vol. 5): Service Manual
The full 3E21 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.
SourceWolf Service Manual: Professional Induction Range (Vol. 6): Service Manual
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Where this code is documented
3 manuals in the MyPros+ library document this code for Wolf range.
Models covered by the manuals that document this code
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