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4-3 Hydro Unit
4-3-1 EEPROM error
Outdoor unit display
Indoor unit display
Criteria
Cause of problem
1. How to check
EEPROM SUB PBA
78
◑(Timer)
◑(Fan)
×(Operation)
• Communication failure between EEPROM and MICOM
• PCB replacement due to defective EEPROM
Check the location of EEPROM by
referring to the schematic diagram
Are there any problems
such as short or dewetting between
EEPROM PIN?
Yes
If you restart after reentering
model options and power reset, does the
error occur again?
Yes
Replace PCB
◑(Filter)
×(Defrost)
No
No
Replace PCB
Normal operation
Samsung Electronics
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Troubleshooting
