Unox AF41

What does Unox AF41 mean?

AF41 is a chamber temperature alarm split by the manual into two cases by the temperature at which it occurs: Case 1 with chamber temperature above 150 °C (302 °F) and Case 2 below 150 °C. The distinction guides whether the fault relates to high-temperature operation or a condition at lower temperature, and the oven stops to protect the appliance.

Symptoms

• AF41 shown on the control panel
• Oven stops during heating
• Abnormal chamber temperature behaviour
• Alarm tied to a specific temperature range

Common causes

• Chamber temperature outside the expected range for the operation
• Temperature probe reading inconsistent with actual conditions
• Heating or cooling control fault
• Power board or wiring fault

Diagnostic steps

1. 01

   Note the temperature case

   Determine whether the alarm occurs above 150 °C (302 °F) (Case 1) or below (Case 2), as the manual provides different guidance for each.

2. 02

   Let the oven cool

   Allow the chamber to cool, then retry and observe at what temperature the alarm reappears.

3. 03

   Check the chamber probes

   Verify the chamber temperature probes are connected and reading plausibly.

4. 04

   Escalate for control checks

   If the alarm recurs, have the heating control and power board checked against the relevant AF41 case.

When to call a professional

AF41 relates to chamber temperature control and is split into two diagnostic cases by temperature. Interpreting the case and testing the probes, heating control and power board requires Unox service knowledge and internal access. If a cool-down and retry do not resolve it, book a qualified Unox technician.