E9
Hisense
User Interface to Power Board Communication Error
E9 error on induction cooktop, some or all zones inoperative.
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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 or damaged communication cable, Faulty user interface (touch control) board, Defective main power module, Moisture ingress on control connectors
How to Fix / Troubleshooting
Safety: Disconnect power before removing the cooktop from the counter or opening any panels.
- Dry the unit: If the error appeared after a spill or steam exposure, leave power off and allow the cooktop to dry for several hours. Do not use heat guns directly on electronics.
- Inspect communication cable: Remove the glass top and locate the cable between the touch control board and the power module. Reseat both ends and check for corrosion or broken conductors.
- Check for moisture: Look for signs of water around connectors. Gently dry with a lint-free cloth and allow time for complete evaporation.
- Replace UI board: If the cable is good but the display behaves erratically or buttons do not respond, replace the user interface board.
- Replace power module: If the UI is working but zones remain dead with E9, the power module may be defective and require replacement.
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Repair Difficulty
Hard
4/5
Required Part
User Interface (Touch Control) Board
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