Service diagnosis
3
4
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
Supposed
■
Faulty EEPROM data
Causes
■
Faulty EEPROM
■
Faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or
parts damage may be occurred.
Replace the indoor or outdoor mainboard.
Содержание 1U18TR4ERA
Страница 11: ...Pinping diagrams Domestic air conditioner 4 Piping diagrams 9 EEV EEV ...
Страница 12: ...Operation range Domestic air conditioner 5 Operation range 10 ...
Страница 63: ...Domestic air conditioner Removal of procedure 1 Removal of Outdoor panel 1 ...
Страница 64: ...Domestic air conditioner Loosen the top panel screws 1 2 Lift the top panel Removal of procedure 2 ...
Страница 65: ...Domestic air conditioner Loosen the screws and pull the panel Removal of procedure 3 ...
Страница 66: ...Domestic air conditioner 2 Removal of Electrical Box Removal of procedure 4 ...
Страница 67: ...Domestic air conditioner 3 Removal of Fan and Fan Motor Removal of procedure 5 ...
Страница 68: ...Domestic air conditioner 2 Loosen the fixing screws and remove the motor Removal of procedure 6 ...
Страница 69: ...Domestic air conditioner 4 Removal of Fan Motor Bracket and Partition Removal of procedure 7 ...
Страница 70: ...Domestic air conditioner and remove the reactor Loosen the screw Removal of procedure 8 ...