4-6
Samsung Electronics
Troubleshooting
4-2-2 Outdoor Unit
SUB PCB
7-Segment
Diplay
Content
Measures
Product operation status in
case of error
Number of Times
Outdoor unit
compressor/
outdoor unit fan
Indoor unit communication
error(1min.)
•
Check the communication line for indoor units
•
Check the power supply of the communication
phase(DC)
1 Time
Operation-off
Communication time-out
error(2min.)
•
Check the communication line for indoor units
•
Check the power supply of the communication
phase(DC)
1 Time
Operation-off
Indoor temperature sensor
•
Check the temp. sensor of the indoor unit room
•
Check the indoor PCB connector
1 Time
Operation-off
Indoor unit EVA IN sensor
•
Check the indoor unit drainage pipe sensor
•
Check the indoor PCB connector
1 Time
Operation-off
Indoor unit EVA OUT sensor
•
Check the indoor unit drainage pipe sensor
•
Check the indoor PCB connector
1 Time
Operation-off
Dismount of indoor unit
EVA IN sensor
•
Check the drainage pipe has been dismounted
1 Time
Operation-off
Dismount of indoor unit
EVA OUT sensor
•
Check the drainage pipe has been dismounted
1 Time
Operation-off
Secondary detection of indoor
floating switch
•
Check the indoor unit's float sensor
•
Check the indoor PCB connector
1 Time
Operation-off
Indoor fan error
•
Check the indoor PCB connector
1 Time
Operation-off
Indoor eeprom error
•
Check the EEPROM data
•
Check the indoor's option
1 Time
Operation-off
Indoor eeprom option error
•
Check the EEPROM data
•
Check the indoor's option
1 Time
Operation-off
:
OFF
:
ON
◎
:
BLINK