3 beeps - Unit or Mode number not recognized (Wireless Remote Controller)

What does 3 beeps (0.4s each) mean?

When using the wireless remote controller to set function numbers, unit numbers, or mode numbers, three short beeps indicate that the entered number is not recognized by the indoor unit. This means the input was invalid.

• Entering a unit number not recognized by the system.
• Entering a mode number not recognized by the system.
• Signal not properly received by the indoor unit's sensor.

Click steps to track your progress.

1. 1

   Ensure the wireless remote controller is directed towards the indoor unit's receiver.

2. 2

   Re-enter the unit number or mode number, double-checking it against the indoor unit's Installation Manual for correct values.

3. 3

   If the signal was not received (no beep or a "double beep" heard), re-enter the number again, ensuring direct line of sight.