Hydraulic Indoor Unit LED2 (Green) 6 Flashes, LED1 (Red) 2 Flashes - Outdoor unit main PCB error

What does LED2 6 Flashes, LED1 2 Flashes mean?

This signifies a fault with the main Printed Circuit Board (PCB) in the outdoor heat pump unit, which controls its core functions.

• Component failure on the outdoor unit's main PCB.
• Electrical surge or instability affecting the board.
• Software or firmware issue on the PCB.

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

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

3. 3

   Contact a qualified service technician, as a PCB replacement may be necessary.