Wired Remote 102 — Indoor/outdoor unit communication time-out error

What does 102 mean?

The wired remote controller displays error code 102, indicating a communication timeout error between the indoor/outdoor unit. This means the remote has lost communication with the system for an extended period.

• Damaged communication cable between indoor and outdoor units
• Loose communication cable connection at either unit
• Faulty outdoor unit or indoor unit PCB

Click steps to track your progress.

1. 1

   Turn off the power to both indoor and outdoor units at their respective circuit breakers.

2. 2

   Check all communication cable connections between the indoor and outdoor units for security and correct wiring.

3. 3

   Wait for at least 30 seconds, then restore power to the units.

4. 4

   If the error persists, contact a qualified technician to diagnose the communication line and unit PCBs.