E9
Cardale
Control PCB Memory or Firmware Error
Opener beeps and shows E9; door does not move. Often occurs after power surge or lightning storm.
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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 EEPROM on Cardale control board, Surge damage to microcontroller, Incorrect voltage supply to logic circuit, Water ingress onto PCB
How to Fix / Troubleshooting
Safety first: Disconnect mains power before opening the operator housing.
- Power cycle: Turn off power for at least 60 seconds, then restore. Sometimes a full reset clears transient memory errors.
- Inspect for moisture: Check inside the opener housing for signs of condensation, leaks from the roof, or corrosion on the PCB. Dry the area thoroughly and correct any roof or door header leaks.
- Check supply voltage: Use a multimeter to confirm the low‑voltage supply (e.g., 24 V DC) from the transformer/SMPS to the logic board is within specification.
- Factory reset: If the manual provides a factory reset procedure (often holding PROG/SET for a long period), perform it and then re‑program travel limits and remotes.
- Replace control PCB: If E9 persists, the control board firmware or memory is likely damaged. Replace the Cardale control PCB / logic module with the exact model for your opener.
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Repair Difficulty
Hard
4/5
Required Part
Cardale Control PCB / Logic Board
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