E09
IPSO EEPROM / Control Board Configuration Error

Washer stops and displays E09; no obvious mechanical issue, may occur randomly

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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 data on main PCB, Incorrect configuration for IPSO washer model, Power surge damage to control board, Loose control board connectors

How to Fix / Troubleshooting

Safety first: Unplug the washer before accessing the control panel or electronics.

Steps to check and correct:

  • Power reset: Disconnect power for at least 5 minutes to allow capacitors to discharge. Reconnect and see if the error clears.
  • Inspect control connections: Remove the top/control panel to access the main PCB. Check that all harness connectors are fully seated and that there is no visible corrosion or burn damage.
  • Check for moisture: Look for signs of water ingress around the control area. Dry thoroughly and correct any leaks from the dispenser or vent.
  • Configuration check: Some IPSO commercial washers require configuration via service mode after board replacement. If the board was recently changed, verify that the correct model parameters have been programmed (requires service manual).
  • If E09 persists: The EEPROM or microcontroller on the PCB is likely damaged. Replace the main control board with the exact IPSO part number and perform any required configuration steps.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board (PCB)
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