F12
Zanussi
Clock / Timer Module Fault
Oven displays F12 and time/program cannot be set correctly
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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
Internal failure of electronic timer, Corrupted timer settings after power surge, Faulty encoder knob or buttons, Damaged wiring between timer and main board
How to Fix / Troubleshooting
Safety first: Disconnect mains power before removing the control panel.
Step-by-step checks:
- 1. Reset the timer: With power on, attempt a full reset by holding the timer buttons as per the user manual (often simultaneously pressing +/- or a dedicated reset combination).
- 2. Power cycle: Turn off power for 10 minutes, then restore and reprogram the clock. Check if F12 clears.
- 3. Inspect control panel: Remove the fascia and check the timer PCB for signs of damage or moisture.
- 4. Test buttons/encoder: Press each button and rotate the selector to see if the display responds. Non-responsive controls indicate a faulty timer module.
- 5. Replace timer module: Order the correct Zanussi oven timer/clock module using the model number. Transfer any mounting brackets and reconnect all plugs firmly.
Warning: Incorrect wiring of the timer can prevent the oven from heating; take photos before disassembly.
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Repair Difficulty
Medium
3/5
Required Part
Electronic Timer / Clock Module
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