Error Mode Display Of Outdoor Unit Board - Samsung SH09BWHA Service Manual

Troubleshooting

6-2-2 Error mode display of outdoor unit board

LAMP of Display Monitor
YELLOW GREEN
X X
X X
X X
X
X
X
X
X
X
X
X
X
X
20
RED
X Power Off / VDD NG
Comp. Peak Current (O.C.)
Communication NG
Comp. Starting error
X
Heatsink sensor error
Normal Operation
DC-Iink overvoltage error
4-Way valve error
Heatsink Temp. trip
X
Outdoor Sensor error(Open/Short)
Discharge sensor temp. trip
Discharge sensor error(Open/Short)
X
OLP sensor error(Open/Short)
CT sensor error
X Unit Over Current protection
Deice sensor error(Open/Short)
OLP sensor temp. trip
OPTION error (EEPROM)
Compressor rotation error
X DC fan error (SH12BWHX only)
DC-Link voltage sensor error
PFC OC error
NO GAS error
X
AC Line zero-crossing error
RED
GRN
YEL
Description
: Lamp on : Lamp flickering
ULN2003
X : Lamp off
Samsung Electronics