E12
Aquaflow Internal EEPROM / Parameter Memory Error

Pump display shows E12 and unit runs only at a fixed speed or shuts down

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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 configuration memory, Power interruption during programming, Failing control board memory chip

How to Fix / Troubleshooting

Safety first: Turn off power before performing any reset procedures.

  • Factory reset: Follow the Aquaflow manual procedure to restore factory default settings (often involves holding specific buttons while powering on). This can clear corrupted parameters.
  • Reprogram speeds: After reset, re-enter desired speed and schedule settings via the keypad.
  • Stable power: Avoid programming the pump during storms or when power is unstable to prevent further corruption.

If E12 reappears after a factory reset, the control board's memory is likely defective and the board should be replaced.

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Repair Difficulty

Hard 4/5

Required Part

Aquaflow control board assembly
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