Samsung SH12VCD Service Manual page 22

5-2-2 Error mode display of outdoor unit board
LAMP of inverter PBA
GREEN
YELLOW
X
X
X
X
X
X
Samsung Electronics
RED
X
X X
X
X
X
X
X
X
X
: LAMP ON
: LAMP FLICKERING
: LAMP OFF
X
Normal operation and communication (Indoor-Outdoor unit)
Abnormal communication(Indoor-Outdoor unit)
Trouble of the control power of the outdoor
Abnormal communication (Sub-Main micom)
No zero-crossing signal
Trouble of option setting
Abnormal increase of discharge temperature
Abnormal increase of OLP temperature
Abnormal increase of operation current
Over current of IPM circuit
Over voltage of IPM circuit
Over voltage and current of PFC circuit
Trouble of DC link voltage circuit
Trouble of discharge temp-sensor(open/short)
Trouble of outdoor temp-sensor(open/short)
Trouble of deice temp-sensor(open/short)
Trouble of OLP temp-sensor(open/short)
Trouble of AC current sensor(open/short) and Leakage of
refrigerant(R-22)
Troubleshooting
RED GREEN YELLOW
LED3 LED2 LED1
Description
5-3