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1 Master Fan CT Sensor Error
7
5
Slave Fan CT Sensor Error (For
2
20/23/25RT Only)
1
Master Fan DC Link High Voltage Error
7
6
2 Slave Fan DC Link High Voltage Error
(For 20/23/25RT Only)
1 Master Fan Over Current Error
7
7
Slave Fan Over Current Error (For
2
20/23/25RT Only)
1 Master Fan Start Failure Error
7
9
Slave Fan Start Failure Error (For
2
20/23/25RT Only)
1 Master Main PCB EEPROM Error
8
6
Slave Main PCB EEPROM Error (For
2
20/23/25RT Only)
1 Master Fan PCB EEPROM Error
8
7
Slave Fan PCB EEPROM Error (For
2
20/23/25RT Only)
Title
Master Fan CT Sensor open or short
Slave Fan CT Sensor open or short
Master Fan Current is abnormal
Slave Fan Current is abnormal
Master Fan Current is over 10A
Slave Fan Current is over 10A
Master Fan First Position Sensing Failure
Slave Fan First Position Sensing Failure
Communication Fail between Master Main MICOM and
EEPROM or omitting EEPROM
Communication Fail between Slave Main MICOM and
EEPROM or omitting EEPROM
Communication Fail Between Master Fan MICOM and
EEPROM or omitting EEPROM
Communication Fail Between Slave Fan MICOM and
EEPROM or omitting EEPROM
INSTALLATION OF UNIT
Cause of Error
37
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