E15
AquaSoft
EEPROM / Configuration Memory Error
E15 error and the unit indicates an internal memory or configuration fault.
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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, Power surge during programming, Defective control board memory chip, Incorrect firmware
How to Fix / Troubleshooting
Safety first: Disconnect power before removing the control panel.
- Power cycle: Unplug the unit for 10 minutes, then plug it back in to see if E15 clears.
- Factory reset: Perform a full factory reset from the installer menu. Re-enter all system parameters (hardness, capacity, regeneration time, etc.).
- Check for firmware updates: If your AquaSoft model supports firmware updates via service port, consult AquaSoft technical documentation or a technician to update the firmware.
- Surge protection: Install a surge protector on the outlet to prevent future memory corruption.
- Replace control board: If E15 persists after reset and firmware verification, replace the AquaSoft main control board.
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Repair Difficulty
Medium
3/5
Required Part
AquaSoft Main Control Board
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