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10.4.2
EEPROM abnormal
E4: Indoor EEPROM error
Indoor Display
Indoor display
F12: Outdoor EEPROM error; Outdoor LED1 flash 1 times
Method of
Malfunction
The Data detected by the EEPROM are used to determine MCU
Detection
Malfunction
When the data of EEPROM is error or the EEPROM is damaged
Decision
Conditions
Supposed
■
Causes
■
■
* Caution:
Trouble
or parts damage may be occurred.
shooting
Faulty EEPROM data
Faulty EEPROM
Faulty PCB
Be sure to turn off power switch before connect or disconnect connector,
Replace the indoor or outdoor mainboard.
31
Service Diagnosis
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