Service and Parts Manual (2019, 2020, 2021, 2022)

112 PB
TROUBLESHOOTING
Drive Fault Code (24K/36K)
s for
16 Low DC voltage 200V
1. Voltag e input is too low;
2. Drive board fault.
18
1. Chec k the power supply;
2. Cha nge the driver board.
Driver board read EE
data error
1. EEPROM has no data or data error;
2. EEPROM circuit fault.
19
1. Cha nge EEP ROM component;
2. Cha nge the driver board.
PFC chip receive data
fault
Abnorma l communicati on loop.
Change the drive board.
20
PFC soft start
abnormal ly
Abnorma l 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.