Error 101 - Indoor unit communication error

What does 101 mean?

The indoor unit cannot receive any data from the outdoor unit, indicating a communication breakdown between these two components.

• Communication wiring issue between indoor and outdoor units
• Power supply problem to one of the units
• Faulty communication module

Click steps to track your progress.

1. 1

   Check all communication wiring connections between the indoor and outdoor units for looseness or damage.

2. 2

   Ensure both the indoor and outdoor units are receiving stable power.

3. 3

   Power cycle both the indoor and outdoor units by turning off their main power for 30 seconds and then turning it back on.