Wolf Convection Steam Oven Code F1: Food probe error

What F1 means

On Wolf convection steam ovens such as the CSO30TM/S/TH, F1 on knob-control models covers two probe errors: E17, a short circuit in the food probe, which can come from the probe not being in the food, a tip that is too hot or moisture in the socket; and E18, a break or loose contact in the probe or its socket. The probe cooking function may stop.

Common causes of F1

Short circuit in the food probe (E17)
Probe tip too hot or not inserted in food
Moisture in the probe socket
Break or loose contact in the probe or socket (E18)

✓ One safe check you can try

1. Remove the probe, let it cool and dry the probe and the socket. 2. Reinsert it firmly into the food, with the tip in the thickest part. 3. Run a short cycle. 4. Try cooking without the probe. If F1 returns, call us.

! Why to stop there

The socket sits in the cooking cavity wall and is connected to wiring we should test.
A damaged probe and a damaged socket have different costs.
We give the price in writing first.
A 30-day workmanship warranty follows.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Steam Oven codes

F9Wolf CSO Steam Oven Code F9: cooking space not sealed U0Wolf CSO Steam Oven Code U0: neutral or overvoltage problem U1Wolf CSO Steam Oven Code U1: L2 supply problem U2Wolf CSO Steam Oven Code U2: mains undervoltage Boiler scaled upWolf Convection Steam Oven Message Boiler scaled up: Descale required E26Wolf Convection Steam Oven Code E26: Climate sensor problem E87Wolf 24-Inch E Series Code E87: Exhaust slide valve jammed or shorted E42Wolf Convection Steam Oven Code E42: Water temperature sensor error

F1F1 questions

Can I just replace the probe?

Sometimes, if the probe is damaged. If a new probe still shows the code, the socket or wiring needs checking. Dry the socket with a soft cloth before you try again.

Why does moisture matter?

Moisture in the socket can short the probe signal and cause E17. A replacement probe is a quick test. If the code stays, the socket and its wiring come next.

Can I cook without the probe?

Yes, normal cooking should work without it, so you can keep using the oven for regular meals. Dry cooking works as usual, while probe features stay unavailable until the cause is fixed.