Samsung AC009BNLDCH Service Manual page 244

Troubleshooting
■ 1way Cassette : AC***BN1DCH
Abnormal conditions
Power reset
Error of temperature sensor in the indoor
unit (Open/ Short)
Error of heat exchanger sensor in the indoor
unit
Error of the outdoor temperature sensor
Error of the condensor temperature sensor
Error of the discharge temperature sensor
1. No communication for 2 minutes between
indoor units (Communication error for more
than 2 minutes)
2. Indoor unit receiving the communication
error from outdoor unit
3. Outdoor unit tracking 3 minutes error
4. When sending the communication error
from the outdoor unit, the mismatching of
the communication numbers and installed
numbers after completion
of tracking. (Communication error for more
than 2 minutes
1. Error of electronic expansion valve open
2. 2'nd detection of high temperature cond
3. 2'nd detection of high temperature dis-
charge
4. Error of reverse phase
5. Compressor down due to 6th detection of
freezing
Detection of the float switch
"EEPROM error
EEPROM option error"
Error on indoor fan motor (E154)
Outdoor valve clogging error
Error due to connecting outdoor units that
do not support the WindFree function
: On, : Flickering, X : Off
• If you turn off the air conditioner when the LED is flickering, the LED is also turned off.
4-50
LED lamp display
Operation Defrost
Timer
Blue Yellow
X
X X
X
X
X
X
X
X
X X
X
X
X
Filter
reset
Fan
X X X
X X
X X
X
X
1. Indoor unit
X
2. Outdoor unit
X
X
X
X
X X
Samsung Electronics
Remarks
error (Display is
unrelated with
operation)
error (Display is
unrelated with
operation