F40
V-ZUG
Configuration or Model Identification Error
Oven shows F40 immediately after switching on; no functions can be selected.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Incorrect or missing configuration on new control board, Wrong control board fitted for model, Corrupted model ID data, Faulty configuration jumper or coding plug
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing internal electronics.
Step-by-step checks:
- Check coding plug (if present): Some V-ZUG models use a coding plug or jumper on the PCB to identify the model. Ensure it is present and correctly seated.
- Verify part numbers: Confirm that any recently replaced control board matches the exact model and article number of your oven.
- Service configuration: A technician may need to enter service mode to configure the board for the specific oven model.
When to call a technician: F40 typically requires service-level configuration tools; contact an authorized V-ZUG service partner.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB / Coding Plug
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