E15
AquaClean EEPROM / Configuration Memory Fault

E15 displayed and the unit reports an internal memory or configuration error.

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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 programming, Power surge damage, Failed EEPROM on control board, Incorrect firmware

How to Fix / Troubleshooting

Safety: Unplug the softener before removing the control panel.

Steps:

  • Factory reset: Perform a full factory reset from the AquaClean menu (consult manual). Re-enter hardness, capacity, time, and regeneration settings.
  • Stable power: Connect the unit to a surge-protected outlet to prevent further corruption.
  • Firmware update: If AquaClean provides firmware updates (via USB or service port), apply the latest version following official instructions.

If E15 persists after reset and firmware update, the main control board's memory is likely defective and the AquaClean main control board should be replaced.

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Repair Difficulty

Hard 4/5

Required Part

AquaClean Main Control Board
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