E12
Ninja
Keypad / Touch Interface Communication Fault
Smoker shows E12 and beeps; temperature setpoint cannot be adjusted or cook will not start.
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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
Loose ribbon cable between keypad and display PCB, Damaged touch panel, Liquid ingress into control panel, Faulty display PCB
How to Fix / Troubleshooting
Safety first: Unplug the smoker before opening the control panel.
- Inspect control panel: Check for cracks or signs of liquid spills on the keypad area. Wipe the surface dry.
- Reseat ribbon cable: Remove the control bezel to access the keypad ribbon cable. Carefully unplug and reinsert the cable into the display or main PCB, ensuring it is fully seated and straight.
- Drying: If liquid entered the panel, allow it to dry completely for 24 hours before reassembly. Do not use high heat directly on the panel.
- Test keys: After reassembly, plug in and test each button. If some or all keys remain unresponsive and E12 persists, the keypad membrane or display PCB likely needs replacement.
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Repair Difficulty
Medium
3/5
Required Part
Keypad / Display PCB Assembly
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