Error in Indoor Unit Transmitting Signal to Remote Controller
1. Error Detection Method
It is judged an error when an indoor unit cannot itself receive a signal that it sent to its remote controller(s).
- Indoor unit control PC board faulty
- The remote control's wires 1(white) and 2(black) are shorted or opened.
2. Error Diagnosis
Indoor unit control PCB
|1-1||Are the remote control's wires 1(white) and 2(black) are shorted or opened?||Yes||Correct the wiring|
|1-2||Replace the indoor unit control PC board.|
- For information on the procedures for replacing the Indoor unit control PC board, refer to the manual that is packaged with theindoor unit service board.