Operation LED blinks 3 times, Timer LED blinks 10 times, and wired remote shows 3A — Indoor unit communication circuit (wired remote control) error.

What does Operation 3 Times / Timer 10 Times / 3A mean?

There's a communication issue between the wired remote control and the indoor unit, or between multiple indoor units.

• Disconnection or short circuit in the cable between the remote control and indoor unit, or between indoor units.
• Defective wired remote control.
• Defective Indoor Unit Controller PCB.

Click steps to track your progress.

1. 1

   Reset the power to the indoor unit and wired remote control by cycling their circuit breakers.

2. 2

   Check the terminal connections between the remote control and the indoor unit for any looseness, damage, or disconnections.

3. 3

   Ensure there is no short circuit in the communication cable.

4. 4

   If the error persists, professional service is needed to check the remote control or controller PCB.