E19
Aqua Dial
Real-Time Clock / Backup Power Fault
E19 displayed and the unit indicates an internal clock or battery backup fault (on models with backup)
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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
Failed RTC circuit on Aqua Dial PCB, Depleted backup battery (if fitted), Frequent power interruptions, Corrupted timekeeping firmware
How to Fix / Troubleshooting
Safety first: Disconnect power before opening the control head.
- Check for backup battery: Some Aqua Dial models include a small coin-cell or rechargeable battery on the PCB. If accessible and user-serviceable, replace it with the exact specified type.
- Stabilise power: Ensure the softener is connected to a stable power source, not a switched outlet that is turned off regularly.
- Reset time: After restoring power, set the correct time and regeneration schedule.
- Replace PCB: If the clock will not keep time even with a new battery and stable power, the control PCB may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Main Control PCB
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