Ninja
Start Circuit / User Interface Logic Failure
Multicooker powers on but will not start any cooking program; pressing START does nothing.
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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
Faulty START button on keypad, Control board not registering inputs, Child lock or safety mode active (on some models), Lid or pot detection not satisfied
How to Fix / Troubleshooting
Safety first: Ensure the inner pot and lid are correctly installed before troubleshooting.
- Check display messages: Look for icons or text indicating lid not closed, pot missing, or lock active. Resolve any indicated condition.
- Confirm pot and lid: Install the Ninja inner pot and close/lock the lid as required for the selected function.
- Test other buttons: If other buttons respond but START does not, the START key may be faulty. Gently press around the button to see if it intermittently works.
- Power reset: Unplug for 10 minutes, then retry. If the issue persists, the keypad or control board likely needs replacement.
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Repair Difficulty
Medium
3/5
Required Part
Control Panel Keypad
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