DC INVERTER U-MATCH AIR CONDITION MAINTENANCE
103
Table 4 Driver Board Fault Display Codes for 3-phase Power Supply Unit
Note:This table is only applicable to A series 3-pha
se power supply models (ASGE-**AI-3)
Driver Board LED Display for 3-phase
Unit
Wired
controller
Item
LED1
(red)
LED2
(yellow)
LED3
(green)
Normal Mode
Blink Dark Dark No display
IPM module protection
Blink Dark Blink E5
High-pressure protection
Blink Blink Dark E5
Compressor current protection
Blink Blink Blink E5
Fault from variable frequency drive to main control
communication
Dark Blink Blink E5
Loss-of-synchronization protection
Blink Bright Bright E5
Current sensor fault
Blink Blink Bright E5
Sensor connection protection
Bright Bright Blink E5
Radiator over temperature protection
Bright Blink Bright E5
Radiator temperature sensor error
Dark Blink Bright E5
Mode error
Bright Dark Blink E5
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