Service diagnosis
32 Domestic air conditioner
10.3.2 EEPROM abnormal
Indoor Display E4: Indoor EEPROM error
Indoor display F12: Outdoor EEPROM error; Outdoor LED1 flash 1 times
Method of The Data detected by the EEPROM are used to determine MCU
Malfunction
Detection
Malfunction When the data of EEPROM is error or the EEPROM is damaged
Decision
●
Conditions
Suppo
sed ■
Fa
ulty EEPROM dat
a
C
auses ■
Faulty EEPROM
■ F
aulty PCB
Troublesho
oting *
Caution Be sure to turn off power switch before connect or disconnect connector, or part
s
damag
e may be occurred.
Replace the indoo
r or outdoor mainboard.
To Next Page
Loading...
