F15
Aquacomfort
External Control / Communication Fault
Heater shows F15; no call for heat is recognized from external automation.
Advertisements
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.
Advertisements
Possible Causes
Incorrect wiring to pool automation, Faulty RS-485 or dry-contact interface, Misconfigured control mode on heater
How to Fix / Troubleshooting
Safety first: Turn off power before adjusting control wiring.
- Check control mode: On the heater’s user interface, verify that it is set to the correct mode (standalone, remote thermostat, or automation bus) per Aquacomfort instructions.
- Inspect external wiring: Open the low-voltage wiring compartment and verify that the remote control wires are landed on the correct terminals and are secure.
- Test standalone operation: Temporarily disconnect external control wires and attempt to run the heater using only the onboard thermostat. If it works locally, the issue is in the automation system or wiring.
- Consult automation manual: Ensure that the external controller is configured for an Aquacomfort heater and that addresses/baud rates (for RS-485) are correct.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
External Control Interface Module
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements