E15
AquaFlo Parameter / Configuration Error

E15 displayed; pump runs erratically or stops when speed is changed.

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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

Incorrect minimum/maximum speed settings, Invalid ramp time configuration, Corrupted EEPROM on AquaFlo controller, Incompatible firmware settings

How to Fix / Troubleshooting

Safety first: Turn off power before opening the control housing.

  • Restore factory defaults: Use the AquaFlo controller menu to perform a factory reset of all parameters. Refer to the manual for the exact button sequence.
  • Re-enter settings: After reset, reprogram desired speeds, schedules, and limits according to AquaFlo guidelines (e.g., minimum speed not below priming threshold).
  • Update firmware (if supported): If AquaFlo provides firmware updates via USB or service tool, update to the latest version to correct known parameter bugs.
  • Power cycle: Turn power off for 2–3 minutes, then restore and test operation.

If E15 recurs after a clean reset and firmware update, the controller memory may be defective and the control board should be replaced.

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Repair Difficulty

Medium 3/5

Required Part

AquaFlo Digital Control Board
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