Samsung AR07TSFABWKN Service Manual page 62

Troubleshooting
Indoor unit display
Symptom
Failure
components in good conditions?
Restart the unit after replacing the PCB
4-30
(Operation)
EEPROM circuit failure.
EEPROM component failure, EEPROM circuit parts missing/damaged/soldering
failure.
Are the EEPROM circuit
soldering failure)
No
(Timer) X (Filter)
Yes
Replace the PCB if the restart fails
Samsung Electronics