Unox WM02 Error Code

What does Unox WM02 mean?

WM02 is a power board over-heating warning on the Slowtop accessory. The Slowtop's power board is running too hot. As a warning the accessory continues with reduced function while flagging the overheating electronics, usually a cooling or installation issue.

Symptoms

• WM02 warning referencing the Slowtop
• Slowtop power board running hot
• Warning during extended use
• Warning clears as the board cools

Common causes

• Inadequate cooling of the power board
• High ambient temperature around the accessory
• Cooling airflow issue
• Power board fault

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Diagnostic steps

1. Allow cooling

   Let the Slowtop cool and check whether the warning clears.

2. Check cooling airflow

   Verify cooling airflow over the board and adequate clearance around the accessory.

3. Check the installation

   Confirm the accessory is installed per the manual with proper ventilation.

4. Service the board

   If overheating persists with correct cooling, have the power board checked and replaced if faulty.

When to call a professional

WM02 affects the Slowtop electronics. Diagnosing the cooling and power board requires accessing the accessory and mains-voltage work; have a qualified Unox technician investigate if a cool-down does not resolve it.