Samsung AC036JB1DEC Service Manual page 64

LED lamp display when error is detected
Error LED lamp Display
Operation Defrost
X
Samsung Electronics
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Cause
EEPROM part defect
X
EEPROM circuit defect
EEPROM option none input/error
input.
Actions to take
Check non-delivery/cool delivery/non-insertion of IC51
Part Pin.
Check non-delivery/cool delivery/non-insertion of IC51
peripheral circuit components.
Re-input of option code for indoor unit.
Turn on Flashing Turn off
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