Error 102 — Communication error between indoor and outdoor units

What does 102 mean?

There is a communication error between the indoor unit and the outdoor unit. This message is typically displayed on the indoor unit.

• Faulty communication cable between units
• Loose connection on the communication ports
• Issue with the outdoor unit's communication module

Click steps to track your progress.

1. 1

   Inspect the communication cable for any signs of damage.

2. 2

   Ensure the cable is securely connected to both the indoor and outdoor units.

3. 3

   Check that no other devices are causing interference on the communication line.

4. 4

   Power cycle the entire system.