Samsung Electronics
4-1
4. Troubleshooting
4-1 Indoor Display Error and Check Method
4-1-1 Indoor unit LED display at error detecting
- Thins to check before diagnosis
Display
Explanation
Check list
Product operation
Diagnosis
Method
Indoor
FAN
Outdoor
FAN
COMP
Indoor and Outdoor unit
communication Error
●
Check the connection wire.
●
Change the Main PCB.
Operation
OFF
Operation
OFF
Operation
OFF
Indoor unit room
temperature sensor
SHORT/OPEN
●
Change the temperature sensor.
(Wire type)
Operation
OFF
Operation
OFF
Operation
OFF
Indoor unit Eva_in sensor
SHORT/OPEN
●
Change the temperature sensor.
(Wire type)
Operation
OFF
Operation
OFF
Operation
OFF
Indoor unit
Fan motor Error
●
Check the connection wire.
●
Change the Fan motor.
●
Change the Main PCB.
※
BLDC Motor is used as Fan Motor,
therefore if you connect or disconnect
the connector while the power is still
on, it may get damaged. Make sure to
turn off the power before performing
any operation.
Operation
OFF
Operation
OFF
Operation
OFF
EEPROM ERROR
●
Change PCB.
Operation
OFF
Operation
OFF
Operation
OFF
EEPROM Option
Setting Error
●
Input option.
- Cannot input KEY
Operation
OFF
Operation
OFF
Operation
OFF
Thermal Fuse Error
(TERMINAL BLOCK)
●
Check the connection wire.
Operation
OFF
Operation
OFF
Operation
OFF
Duplicated address
setting error
●
Check address setting of Indoor units.
Operation
OFF
Operation
OFF
Operation
OFF
No response error of
address from indoor unit
●
Check indoor unit's quantity setting
in outdoor unit.
●
Check electrical connection and set-
ting.
Operation
OFF
Operation
OFF
Operation
OFF
