Unox WF17 Error Code
Partial breaking of the multipoint probe.
Source: Unox/Unox_XACC-0513-EPLM_ServiceManualAll_CommercialKitchen.pdf
What does Unox WF17 mean?
WF17 is a partial breaking of the multipoint core probe. One or more sensing points within the multi-point probe have failed while others still work, so the oven warns that the probe is degraded. It continues to operate but multi-point core cooking accuracy is compromised.
Symptoms
- WF17 warning on the control panel
- Inconsistent core temperature across probe points
- Reduced reliability of multi-point cooking
- Warning recurs with the probe connected
Common causes
- One or more sensing points in the multipoint probe failed
- Damaged probe cable at a flex point
- Connector fault at the probe socket
- Probe nearing end of life
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Diagnostic steps
Inspect the probe
With power off, inspect the multipoint core probe and cable for damage, especially near the handle and bends.
Reseat the connector
Disconnect and reconnect the probe at its socket to rule out a connection fault.
Measure the points
Measure the probe to confirm individual sensing points are out of range, indicating partial failure.
Replace the probe
Replace the multipoint core probe with the correct Unox part and retest multi-point cooking.
When to call a professional
WF17 indicates a degraded multi-point probe that should be replaced for accurate core cooking. If reseating the connector does not clear it, have a qualified Unox technician confirm the partial failure and fit the correct replacement probe.
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Other Unox Error Codes
Motor thermal protection alarm (permanent error) — the fan motor's thermal protection has tripped.
Safety thermostat alarm — the chamber safety thermostat has tripped above its limit.
Temperature probes alarm — a cooking chamber temperature probe is damaged or disconnected.
Communication error with the power board — the control board lost communication with the power board.
Gas alarm — a fault in the gas burner/ignition system (split into multiple AF23 conditions on later software).
Wrong position of Pollo valve.
Trolley is missing.
Tank missing or safety thermostat fault.
Chamber ceiling temperature too high.
Chamber over-temperature condition (Case 1: T > 150 °C / 302 °F; Case 2: T < 150 °C).
Single-point or multi-point core probe completely damaged.
Chamber temperature probe warning.