E15
AquaJet
External Control Input Fault
Display shows E15 and pump cannot be controlled by external automation system.
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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 control wiring polarity, Unsupported control signal type, Failed external control input on AquaJet board
How to Fix / Troubleshooting
Safety first: Turn off power to both the AquaJet pump and the automation system before changing wiring.
- Verify wiring diagram: Compare the actual connections between the automation system and AquaJet control terminals to the official wiring diagram. Correct any mis‑wiring.
- Check signal type: Ensure the automation system is configured to use the correct protocol (e.g., dry contact, RS‑485) supported by your AquaJet model.
- Test local control: Disconnect external control wires and operate the pump from its onboard keypad. If it works locally, the issue is with the external system or its wiring.
- Replace control board: If E15 remains even with correct wiring and known‑good controller, the AquaJet control board's external input circuit may be damaged and require replacement.
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Repair Difficulty
Medium
3/5
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