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Error code reference

Wolf Oven Error Code 1A22

Left convection fan drive open on lower oven.

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What the 1A22 error code actually means

Your Wolf oven has detected that the left convection fan in the lower oven is not working properly, specifically that the electrical circuit powering that fan appears to be broken or disconnected. Without this fan running, the oven cannot circulate heat evenly, which can affect cooking performance. A technician will need to inspect the fan, its wiring, and the control board to find and fix the problem.

Diagnostic procedure

The full 1A22 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check the left convection fan circuit.
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Most common causes of 1A22

Ranked by how often they cause this code
  1. 1Failed convection fan motor
  2. 2Broken or disconnected wiring harness
  3. 3Corroded or loose connector terminals
  4. 4Faulty control board fan drive output
  5. 5Thermal cutout or overload protector tripped or failed

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Questions people ask about 1A22

What does 1A22 mean on a Wolf oven?
Error code 1A22 means the control board has detected an open circuit in the left convection fan drive of the lower oven. This indicates the fan motor circuit is broken, disconnected, or otherwise not completing a proper electrical path. The oven flags this code to alert the user that the left convection fan is not operating as expected.
Is it safe to use my Wolf oven while error code 1A22 is active?
Using the lower oven with an active 1A22 code means the left convection fan is not circulating air properly. The oven may still produce heat, but cooking results will be uneven and temperatures may not be consistent. It is best to avoid relying on the lower oven for precise cooking until the fault is resolved.
How much does it cost to repair error code 1A22 on a Wolf oven?
Repair costs depend on which component has failed. A convection fan motor replacement typically ranges from $150 to $400 or more in parts, plus labor. Wiring harness or connector repairs may cost less if no major parts are needed. Control board replacement is generally the most expensive scenario, often ranging from $300 to $700 or higher for parts alone, with additional labor costs on top of that.
Can I fix error code 1A22 myself?
Some basic checks, such as inspecting accessible wiring connectors for loose or corroded terminals, can be done by a knowledgeable DIYer. However, testing motor windings with a multimeter and diagnosing control board output issues requires familiarity with electrical diagnostics and working safely around high-voltage components. If you are not comfortable with appliance electrical work, a qualified technician is the safer choice.
Will resetting the oven clear error code 1A22?
Cycling power to the oven may temporarily clear the 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 board attempts to operate the fan again. A reset does not repair the open circuit condition causing the fault.

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