Display shows SPREM; heater not responding to remote or automation commands

Note: This affects control, not combustion safety, but can prevent normal operation.

• Local control test: Switch the SmartPool heater to local/manual mode (if available) and see if it operates normally. If yes, the issue is in the remote circuit.
• Check wiring: Verify the remote/automation wires are landed on the correct terminals and with proper polarity as per the SmartPool wiring diagram.
• Inspect cable: Look for cuts, splices, or corrosion in the low-voltage cable between the heater and automation panel.
• Protocol settings: Ensure the heater is configured for the correct remote mode (on/off, 2-wire, digital bus) according to the SmartPool manual.