Unox WF02 Error Code

What does Unox WF02 mean?

WF02 is the front (chamber) temperature probe warning, listed alongside WF01. It indicates a problem with a chamber temperature probe but as a warning rather than a blocking alarm, so the oven continues to operate with restricted functions while flagging that the probe reading is unreliable.

Symptoms

• WF02 warning shown on the control panel
• Oven continues to run with reduced functions
• Suspect or fluctuating chamber temperature reading
• Warning recurs after being cleared

Common causes

• Front chamber temperature probe out of range
• Loose or corroded probe connection
• Probe partial failure or drift
• Wiring fault to the board

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Diagnostic steps

1. Clear and observe

   Acknowledge the warning with OK and watch whether WF02 returns during cooking.

2. Inspect the probe connection

   With power off, check the front chamber probe connector is secure at the board.

3. Measure the probe

   Measure the probe resistance with a multimeter against the Unox probe table and compare with the other chamber probe.

4. Replace if faulty

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

When to call a professional

WF02 is a warning but signals an unreliable temperature reading. For consistent cooking results and food safety, have a qualified Unox technician verify and replace the front chamber probe if clearing the warning does not resolve the issue.