|
|
| Troubleshooting Guide | |
|
|
|
|
|
Error | Title | Cause of error | Check point & Normal condition |
|
code |
| |||
|
|
|
| |
|
|
|
|
|
|
|
| • Power input AC 230V.(Outdoor, Indoor) |
|
|
|
| • The connector for transmission is disconnected. |
|
05 / 53 | Communication |
| • The connecting wires are misconnected. |
|
(Indoor ➔ Outdoor) | • Communication poorly | • The GND 1,2 is not connected at main GND. |
| |
|
| |||
|
|
| • The communication line is shorted at GND. |
|
|
|
| • Transmission circuit of outdoor PCB is abnormal. |
|
|
|
| • Transmission circuit of indoor PCB is abnormal. |
|
|
|
|
|
|
❑Check Point
1.Check the input power AC 230V.(Outdoor, Indoor)
2.Check the communication wires are correctly connected.
➔Adjust the connection of wire
➔Confirm the wire of "Live", "Neutral".
3.Check the resistance between communication line and GND.(Normal : Over 2MΩ )
4.Check the connector for communication is correctly connected.
5.Check the connection of GND1, GND2, and main GND.
6.If one indoor unit is operated normally, outdoor PCB is no problem.
➔Check the another indoor unit.
* CH05 is displayed at indoor unit, CH53 is displayed at outdoor unit.
Service Manual 63