Jandy
Communication / Remote Control Failure
Heater does not respond to automation system commands (e.g., Jandy AquaLink).
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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 automation wiring, Disabled remote control mode, Faulty RS-485 communication cable, Automation interface failure on control board
How to Fix / Troubleshooting
Safety first: Turn off power to both heater and automation system before working on wiring.
- Check mode: Ensure the heater is set to REMOTE or appropriate mode to accept automation commands.
- Verify wiring: Inspect the RS-485 or control wiring between the heater and automation panel. Confirm correct polarity and tight connections.
- Test local control: Try operating the heater from its local control panel. If it works locally but not via automation, the issue is likely in the communication path.
- Replace cable or board: If wiring is good, a technician may need to replace the communication cable or the heater control board's automation interface.
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Repair Difficulty
Medium
3/5
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