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Error code reference

Wolf Oven Error Code E18/F1

Food probe temperature open circuit due to open circuit in food probe wires or loose/broken contact in food probe socket.

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What the E18/F1 error code actually means

Your Wolf oven is showing this error because it cannot detect a temperature reading from the meat probe, which is the sensor you insert into food to monitor its internal temperature. This usually happens because the probe is unplugged or not fully connected to the port on the oven wall. Try plugging the probe in firmly, or if you are not using the probe, check whether your oven model requires a probe or a plug to be inserted into that socket.

Diagnostic procedure

The full E18/F1 procedure

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First diagnostic step
Plug in the food probe.
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Most common causes of E18/F1

Ranked by how often they cause this code
  1. 1Food probe not plugged in
  2. 2Loose or corroded probe socket connection
  3. 3Damaged food probe wiring
  4. 4Faulty food probe thermistor
  5. 5Defective oven control board

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Questions people ask about E18/F1

What does E18/F1 mean on a Wolf oven?
E18/F1 on a Wolf oven indicates an open circuit in the food probe temperature sensing system. This means the control board cannot detect a signal from the food probe, either because the probe is unplugged, the probe wiring is damaged, or there is a loose or broken contact at the probe socket. The fault will persist until the open circuit condition is corrected.
Will resetting my Wolf oven clear the E18/F1 error?
A power reset may temporarily clear the displayed code, but the error will return as soon as the control board checks the probe circuit again and finds the open circuit condition still present. The underlying issue, whether an unplugged probe, damaged wiring, or faulty socket, must be resolved for the fault to clear permanently.
How much does it cost to repair a Wolf oven showing E18/F1?
If the fix is simply reseating the probe, there is no parts cost involved. Replacing a faulty food probe typically runs in the range of $30 to $80 for the part, depending on the model. If the probe socket or control board requires replacement, repair costs can range from $150 to $500 or more, including parts and professional labor.
How do I fix the E18/F1 error on my Wolf oven?
Start by plugging the food probe fully into the socket on the oven wall and confirming it is seated securely. If the probe is already connected, inspect the cable and socket for visible damage, corrosion, or debris. If the error continues after reseating the probe, test with a replacement probe to determine whether the original probe has failed internally.
Is it safe to use my Wolf oven while the E18/F1 error is displayed?
The E18/F1 fault specifically affects the food probe circuit, so probe-dependent cooking modes may be restricted or unreliable while the error is active. Standard bake and broil functions that do not rely on the food probe may still operate, but you should resolve the fault before depending on the oven for probe-monitored cooking. If you are unsure which functions are affected, avoid using the oven until the issue is diagnosed.

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