Samsung AC052FBNDEH - EEPROM Circuit Failure

Samsung Electronics4-24
Restart the unit after replacing the PCB
Indoor unit display
4way
(Operation) (Defrost) (Timer) X (Filter)
1way
(Operation) X (Defrost) (Reservation) (Fan) X (Filter)
Symptom
EEPROM circuit failure
Failure
EEPROM component failure, EEPROM circuit parts missing/damaged/soldering failure
4-3-6 EEPROM circuit failure
No
Yes
Are the EEPROM circuit
components in good conditions?
(missing components / damage /
soldering failure)
Replace the PCB if the restart fails