Outdoor LED is Lit — Abnormal communication or not connected

What does Outdoor control P.C. board LED is Lit mean?

The LED on the outdoor control P.C. board is lit, which indicates abnormal communication or that the unit is not connected. This differs from normal blinking.

• Communication failure
• Unit not properly connected
• Faulty communication component on the outdoor board

Click steps to track your progress.

1. 1

   Check the communication status LEDs on both indoor and outdoor units.

2. 2

   Ensure all communication cables are securely connected.

3. 3

   Refer to the outdoor unit service manual for further diagnostics related to LED indicators.

4. 4

   Reset the unit by cycling the power.