E9
Gram
EEPROM / Configuration Memory Error
Induction cooktop shows E9 and will not operate any zones.
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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
Corrupted firmware on control PCB, Failed EEPROM chip, Power surge damage, Incorrect replacement PCB not programmed for model
How to Fix / Troubleshooting
Safety first: Disconnect the appliance from mains.
- Power reset: Leave the cooktop disconnected for at least 5 minutes to allow capacitors to discharge, then reconnect and test. Sometimes transient errors clear with a full reset.
- Check for surge damage: Inspect the control PCB for burn marks or damaged components, especially near the power supply section.
- Confirm correct board: If a board was recently replaced, verify that the installed PCB matches the exact Gram part number for your model. Incorrect boards can trigger E9.
- Reprogramming: Some Gram models require configuration or parameter setting after board replacement using service mode or a programming tool. Refer to service documentation.
- Replace control PCB: If E9 persists and reprogramming is not possible, the main control PCB must be replaced.
Warning: Firmware and configuration procedures are typically for authorized service centers. Incorrect handling can permanently disable the appliance.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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