Error 86 — Inverter Cable Fault (Software Version 9 and later)

What does 86 *** mean?

A fault with the inverter cable has been detected. This can be due to loose input power wires or a loose communication harness between the inverter and the circuit board. (Applies to software version 9 and later)

• Loose input power wire
• Loose communication harness between inverter and circuit board

Click steps to track your progress.

1. 1

   Ensure all input power connections are secure.

2. 2

   Verify the communication harness plug is securely connected to both the Outdoor Unit (ODU) control and the inverter.

3. 3

   If the issue persists, contact a qualified technician to further inspect the wiring.