Haier H2SM-(9+12)HEK03/R2 Service Manual page 58

7.4.7 The outdoor EEPROM Abnormality
Indoor Display
Outdoor Display
Method of Malfunction
Detection
Malfunction Decision
Conditions
Supposed Causes
* Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may
be occurred.
H2SM-(9+12)HEK03/R2
F12
The Data detected by the EEPROM are used to determine MCU
When the Data of EEPROM is error or the EEPROM is damaged
Faulty EEPROM data
Faulty EEPROM
Faulty PCB
The outdoor mainboard is
damaged and needs be replaced
56
Service Diagnosis
Domestic Air Conditioner