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Error code reference

Thermador Oven Error Code F13

Power board not calibrated.

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What the F13 error code actually means

Your Thermador oven is displaying F13 because it detected that the power board inside has not been set up with the correct calibration settings it needs to run safely. This often happens after a part replacement or after a power surge disrupts the oven's internal settings. The oven may refuse to operate until this issue is resolved by a technician.

Diagnostic procedure

The full F13 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.

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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.
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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Most common causes of F13

Ranked by how often they cause this code
  1. 1Replacement power board not calibrated
  2. 2Corrupted calibration memory from power surge
  3. 3Faulty power board with memory failure
  4. 4Communication failure between control board and power board

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Questions people ask about F13

What does F13 mean on a Thermador oven?
F13 on a Thermador oven means the power board has not been calibrated or the system cannot read its calibration data. The power board requires stored calibration settings to manage voltage and heating accurately. This error prevents the oven from operating until the calibration issue is resolved. It most often appears after a board replacement or following a power surge.
Is it safe to use my Thermador oven when the F13 code is showing?
The oven will generally prevent normal operation when F13 is active, which is a protective response to the uncalibrated board condition. You should not attempt to bypass or ignore this fault. Continuing to use an oven with a power management issue could result in inaccurate temperatures or potential electrical hazards.
How much does it cost to repair a Thermador oven with an F13 error?
Repair costs for an F13 error can vary widely depending on whether the power board needs reprogramming only or full replacement. A calibration service call alone might fall in the range of $100 to $250, while a power board replacement combined with calibration could run anywhere from $300 to $600 or more depending on parts and labor rates in your area. Getting a diagnostic estimate from a Thermador-authorized technician is the best starting point.
Can I fix the F13 error on my Thermador oven myself?
The F13 error typically requires a technician to perform a calibration procedure on the power board, which involves specialized steps that are not a standard homeowner repair. If the fault was caused by a power surge, a technician may be able to reprogram the board without replacing it. Attempting to work on the power board without proper training is not recommended due to the high voltage components involved.
Will resetting my Thermador oven clear the F13 error?
A basic reset, such as cycling the circuit breaker, is unlikely to permanently clear F13 because the underlying cause is missing or corrupted calibration data rather than a temporary glitch. The code may clear briefly after a reset but will return once the system checks for calibration on startup. A proper fix requires calibration or board repair by a qualified technician.

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