Gree GMV-PD100W/NAB-K, Service Manual

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1.1 List of Error Display on Wired Controller ..................................................................................... 96
1.2 Display Code on Digital Tube of Outdoor Mainboard.................................................................. 97
2 FLOW CHART OF TROUBLESHOOTING ............................................................. 98
2.1 High-pressure Protection ............................................................................................................ 98
2.2 Low-pressure Protection ............................................................................................................. 99
2.3 Exhaust Temperature Protection ............................................................................................... 100
2.4 Compressor overcurrent protection........................................................................................... 101
2.5 Communication error................................................................................................................. 103
2.6 Water-full protection .................................................................................................................. 104
2.7 Error with room sensor, tube-inlet, tube middle and tube-exit sensor; error with room sensor,
tube-inlet, tube middle and tube-exit sensor and exhaust / casing top sensor; error with the
compressor bottom sensor.............................................................................................................. 104
2.8 No energization to the unit and mainboard ............................................................................... 105
2.9 PFC Protection ..........................................................................................................................106
2.10 IPM Protecion..........................................................................................................................107
2.11 Trip...........................................................................................................................................108
2.12 Superheat Protection of Radiator ............................................................................................ 109
2.13 DC Overvoltage Protection .................................................................................................... 110
3 POWER DISTRIBUTION ........................................................................................111
3.1 Diagram of Power Distribution .................................................................................................. 111
3.2 Introduction of Major Electrical Elements .................................................................................. 111
3.3 Wiring diadram .......................................................................................................................... 113
4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ......................115
5 EXPLODED VIEWS AND PART LIST.................................................................... 124