Daikin LX10F11B3 Service Manual page 70

https://daikin-p.ru
102 F52E ・ F52F ・ F53B
E52D ・ E52E ・ E52F
Alarm
Logic
E52D：Fin temperature sensor failure
&
Possible
Causes
F52E：E52E is generated 4 times.
E52E：Over current failure
F52F：E52F is generated 4 times.
E52F：Compressor current sensor failure
F53B：EEPROM failure when unit is on
Trouble
Replace Inverter board
Shooting
Controller F52E, F52F, F53B
Action
E52D
E52E, E52F
Alarm Logic
Unit stop
Restart after 3 minutes
Restart after 3 minutes (F52E, F52F is generated at 4 times retry.）
2-41
Possible Causes
Inverter board failure（Fin temperature sensor）
（Fin temperature≧150℃ or -45≦℃）
Inverter board failure（IPM part）
IPM：Intelligent Power Module
Inverter board failure（Current detection part）
Inverter board failure (EEPROM part)
EEPROM : Electrically Erasable Program ROM