Lc - Startup failure

What does Lc mean?

The inverter compressor failed to start up successfully. This may be due to wiring issues or problems with the compressor or its drive board. The ODU main control board's 7-segment LED will display 'PJ' for this error.

• Poor contact of compressor U, V, W wire
• Compressor is faulty
• Compressor drive board is faulty

Click steps to track your progress.

1. 1

   Check the compressor's U, V, W wires for proper connection.

2. 2

   Verify the compressor 3-phase sequence is correct and wires are not loose.

3. 3

   Check if the 3.3V drive board voltage is normal.

4. 4

   Replace the drive board if it is faulty.

5. 5

   Replace the compressor if it is faulty.