4-4 Troubleshooting by symptoms ............................................................................................................................... 4-25
4-4-1 Communication error
..........................................................................................................
4-25
4-4-2 Outdoor temperature sensor error
....................................................................................
4-26
4-4-3 Outdoor Coil temperature sensor error ..............................................................................................
4-28
4-4-4 Outdoor Discharge temperature sensor error
.................................................................
4-30
4-4-5 Outdoor Discharge over temperature error
.....................................................................
4-32
4-4-6 Outdoor Fan motor error .................................................................................................................... 4-33
4-4-7 Compressor starting error .................................................................................................................. 4-34
4-4-8 Compressor wire missing error/rotation error .......................................................................... 4-35
4-4-9 O.C(Over Current) error ....................................................................................................................... 4-36
4-4-10 DC_link voltage sensor error .......................................................................................................... 4-37
4-4-11 DC_link voltage under/over error, Over voltage protection error/PFC over load ..... 4-39
4-4-12 DC_link voltage sensor error ........................................................................................................... 4-40
4-4-13 Current sensor error/Input current sensor error .................................................................... 4-41
4-4-14 Heatsink sensor error/Heatsink over heat ................................................................................. 4-42
4-4-15 Comp Vlimit error/Comp current limit error ............................................................................ 4-43
4-4-16 EEPROM error/OTP error .................................................................................................................. 4-44
4-4-17 AC zero cross signal error ................................................................................................................. 4-45
4-4-18 Operation condition secession error............................................................................................ 4-46
4-4-19 Capacity miss match error ............................................................................................................... 4-47
4-4-20 Gas leak error ........................................................................................................................................ 4-48
4-4-21 MDS Error Flow chart ........................................................................................................................ 4-49
1
5. PCB
Diagram
.....................................................................................................................................
5-1
5-1 PCB Diagram
......................................................................................................................................
5-1
5-1-1 Indoor Unit
..............................................................................................................................
5-1
5-1-2 Panel PCB
.................................................................................................................................
5-2
5-1-3 1way DIP
..................................................................................................................................
5-3
5-1-4 1Way SMD
...............................................................................................................................
5-4
5-1-5 Outdoor Unit PCB
...................................................................................................................
5-5
1
6. Wiring
Diagram
..............................................................................................................................
6-1
6-1 Indoor Unit
........................................................................................................................................
6-1
6-2 Outdoor Unit
....................................................................................................................................
6-2
1
7. Schematic
Diagram
......................................................................................................................
7-1
7-1 Indoor Unit
...................................................................................................................................
7-1
7-2 Outdoor Unit
................................................................................................................................
7-4
8. Reference Sheet
.................................................................................................................................
8-1
8-1 Index for Model Name
......................................................................................................................
8-1
8-2 Refrigerating Cycle Diagram
............................................................................................................
8-4
8-3 Pressure Graph
...................................................................................................................................
8-5
