Unox WF01 Error Code

What does Unox WF01 mean?

WF01 is a chamber temperature probe warning (grouped with WF02 in the manual). Unlike an alarm, a warning lets the oven keep operating with reduced functions while signalling a problem with a cooking chamber temperature probe. It typically means one chamber probe is reading abnormally while another remains usable.

Symptoms

• WF01 shown as a warning, oven still partly usable
• Inconsistent chamber temperature reading
• Warning cleared with the OK icon but returns
• Reduced cooking accuracy

Common causes

• Chamber temperature probe reading out of range
• Loose probe connection
• Probe drift or partial failure
• Wiring fault between probe and board

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Diagnostic steps

1. Acknowledge the warning

   Use the OK icon to clear the warning and note whether it returns during operation.

2. Power down and check the probe

   Turn off power and confirm the chamber temperature probe is connected at its socket.

3. Measure the probe

   Measure the chamber probe with a multimeter (about 110 Ω at 25 °C / 77 °F per the probe table) and compare both chamber probes.

4. Replace if out of spec

   Replace the chamber temperature probe if it is out of specification and retest.

When to call a professional

WF01 is a warning, so the oven still runs, but a drifting chamber probe undermines cooking accuracy and food safety. If clearing the warning does not stop it returning, have a qualified Unox technician measure and replace the affected probe rather than relying on a degraded reading.