Hydraulic Indoor Unit LED2 (Green) 2 Flashes, LED1 (Red) 3 Flashes - Connection forbidden (series error)

What does LED2 2 Flashes, LED1 3 Flashes mean?

This error indicates an issue with how the units are connected, suggesting an improper series configuration or an incompatible device connection.

• Incorrect wiring of the units in a series setup.
• Mismatched component or incompatible configuration.
• Internal control board error.

Click steps to track your progress.

1. 1

   Turn off the main power supply to the heat pump for 30 seconds, then turn it back on.

2. 2

   Check the installation wiring against the installation manual diagrams for correct series connections.

3. 3

   If the error persists, use the 'Reset HP' function (Line 6711) in the control system.

4. 4

   Contact a qualified service technician to review the system configuration.