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Error code reference

Wolf Range Error Code 1A31

The drive circuit for the left convection fan is open when it should be conducting (right oven).

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What the 1A31 error code actually means

Your Wolf range has detected that the convection fan in the right oven is not responding when it should be running. This usually means there is a break in the electrical connection between the oven's control board and the fan motor. Until this is repaired, the convection baking function in the right oven may not work correctly.

Diagnostic procedure

The full 1A31 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
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of 1A31

Ranked by how often they cause this code
  1. 1Open motor winding in the left convection fan
  2. 2Disconnected or damaged wiring harness connector
  3. 3Broken or chafed wire in the fan circuit
  4. 4Failed drive relay or output circuit on the control board
  5. 5Faulty fan motor thermal protector

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Questions people ask about 1A31

What does 1A31 mean on a Wolf range?
Code 1A31 means the control board has detected an open condition in the drive circuit for the left convection fan in the right oven cavity. The circuit is not conducting current when the board expects it to be. This points to a fault in the fan motor, the wiring harness, or the control board's fan output circuitry.
Is it safe to use my Wolf range while error code 1A31 is active?
The range may allow basic baking or broiling to continue, but the convection fan in the right oven will not operate correctly with this fault active. Cooking without a functioning convection fan can result in uneven heat distribution and longer cook times. It is best to avoid convection cooking modes in the right oven until the fault is resolved.
Will resetting the range clear error code 1A31?
Cycling power to the range may temporarily clear the error code from the display, but if the underlying fault in the fan motor or wiring is still present, the code will return once the control attempts to operate the convection fan again. A reset is not a repair and should only be used as part of the diagnostic process to confirm whether the fault is persistent or intermittent.
Can I fix error code 1A31 myself?
Some causes, such as a disconnected harness connector, can be addressed by a knowledgeable DIYer who is comfortable working with appliance wiring. However, testing motor windings, tracing wiring faults inside a built-in range, and replacing a control board typically require appliance repair experience and proper test equipment. If you are not familiar with electrical diagnostics on appliances, a qualified technician is the safer choice.
How much does it cost to repair error code 1A31 on a Wolf range?
Repair costs vary depending on the root cause. A wiring repair or connector fix may cost relatively little beyond a service call fee, typically in the range of $100 to $200. A replacement convection fan motor generally runs $150 to $400 in parts plus labor. If the main control board is the cause, parts and labor combined can range from $400 to $800 or more depending on the specific model.

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