E9
Haier
Internal Hardware Fault
Haier induction cooktop shows E9 and all zones are disabled
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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
Severe power board failure, Shorted components on main PCB, Internal fuse blown on board, Incorrect wiring or reversed polarity
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker. Do not attempt repeated resets.
- Check installation: Verify that the cooktop is wired according to the Haier installation diagram, with correct line, neutral, and ground connections.
- Inspect power board: Remove the bottom cover and look for blown fuses, burnt traces, or damaged components.
- Replace board: If damage is visible or E9 persists after verifying wiring, replace the main power control board.
- Check for underlying issues: Before reconnecting, inspect coils and wiring for shorts that may have caused the failure.
Due to the risk of further damage or fire, complex board-level repairs should be left to professionals.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Power Control Board
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