n3 — Cooling mode test during start-up

What does n3 mean?

This display signifies that the air conditioner is running a cooling mode test during the initial start-up system check. This is observed when the outdoor ambient temperature is between -10°C and 24°C.

• System is performing a cooling mode test during start-up

Click steps to track your progress.

1. 1

   Allow the cooling mode test to complete, which typically takes 10 minutes.

2. 2

   Verify the outdoor ambient temperature is within the expected range (-10°C to 24°C for this test).

3. 3

   If the unit does not pass the test and display 'PS' or 'BP', refer to the service manual for troubleshooting.

4. 4

   Note: The start-up test cannot be bypassed if 'n2' or 'n3' is displayed.