93 PB
TROUBLESHOOTING
Diagnostic Codes -Drive Faults 48-60k
Fault
code
Fault description Possible reasons for abnormality How to deal with
15 The instantaneous power off detection
1. The power supply is not stable ;
2. The instantaneous power failure ;
3. Driver board fault;
1. Check the power supply;
2. Not fault;
3.Changethedriverboard.
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 receives data fault Abnormal communication loop. Change the drive board.
20
PFC soft start
abnormal
Abnormal PFC drive loop. Change the drive board.
21
The compressor drive
chip does not receive data from PFC chip.
Communication loop fault. Change the drive board.
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