E9
Princess Internal Communication or EEPROM Error

Display shows E9; unit may start but then stops with alarm; ice production is intermittent or absent.

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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 main PCB, Loose connector between power and logic sections, Voltage spikes damaging memory, Defective main control PCB

How to Fix / Troubleshooting

Safety: Always unplug the Princess ice maker before opening any covers.

Steps:

  • 1. Hard reset: Unplug the unit for at least 20 minutes to fully discharge capacitors. Plug back in and test.
  • 2. Check supply voltage: Ensure the outlet provides stable voltage within the range specified on the rating label. Avoid using long, thin extension cords or multi-plug adapters.
  • 3. Inspect board connections: Remove the rear or bottom panel to access the main PCB. Reseat all multi-pin connectors firmly.
  • 4. Surge protection: If E9 occurs after storms or power cuts, use a surge-protected outlet for future operation.

Note: Persistent E9 usually indicates a failing main control PCB. Replacement of the board is typically required and may be best handled by a service technician.

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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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