2.TROUBLESHOOTING
Fault
code
Fault description
Possible reasons for abnormality
How to deal with
16 Low DC voltage 200V
1. Voltage input is too low;
2. Drive board fault.
1. Check the power supply;
2. Change the driver board;
18
Driver board read EE
data error
1. EEPROM has no data or data error;
2. EEPROM circuit fault.
1. Change EEPROM component;
2. Change the driver board.
19
PFC chip receive data
fault
Abnormal communication loop.
Change the drive board.
20
PFC soft s
tart is
abnormal
Abnormal PFC drive loop.
Change the drive board.
21
The compressor drive
chip could not receive
data from PFC chip.
Communication loop fault. Change the drive board.
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