Daikin BRC51A61 Mode D'emploi page 8

1.14 Battery Backup
Battery backup is used to retain the RTC and 7-days programmable timer settings during power down
for a minimum of 1 month continuous for every new set of battery installed. For unit without battery
backup, the default setting will be 12:00am on Monday and timer clear during power up.
1.15 Error Indicator
If any abnormal condition detected, an error code will be shown. Error code is displayed by using RTC
segments (blink), which mean whenever there is error occur, RTC will not be shown instead of the error
code. The format for the error code will be as following:
DX Error Code
Room Sensor Open or Short
Indoor Coil Sensor Open
Outdoor Coil Sensor Open
Compressor Overload/Indoor Coil Sensor Short/Outdoor Coil Sensor Short
Low Refrigerant Charge/Gas Leak/Outdoor Abnormal
Water Pump Fault
Outdoor Coil Sensor Exist (MS model)
Hardware Error (Tact Switch Pin Short)
Indoor Fan Feedback Error
EEPROM Error
CW Error Code
Room Sensor Open or Short
Pipe Water Sensor Open or Short
Pipe Water Temperature Poor
Pipe Water Temperature Bad/Fault
Water Pump Error
Hardware Error (Tact Switch Pin Short)
Indoor Fan Feedback Error
Fault Diagnosis (for inverter only)
If there is any abnormal condition detected, SLM9 wired controller will blink the error code
ERROR
CODE
00 NORMAL
A1 INDOOR PCB ERROR
A3 DRAIN PUMP ABNORMAL
A5 ANTIFREEZE (COOLING)/HEAT EXCHANGER OVERHEAT (HEATING)
A6 INDOOR FAN MOTOR ABNORMAL
AH ELECTRICAL AIR CLEANER ABNORMAL
C4 INDOOR HEAT EXCHANGER (1) THERMISTOR SHORT/OPEN
C5 INDOOR HEAT EXCHANGER (2) THERMISTOR SHORT/OPEN
C7 LOUVER LIMIT SWITCH ERROR
C9 INDOOR ROOM THERMISTOR SHORT/OPEN
Error Description
Error Description
MEANING
4
E1
E2
E3
E4
E5
E6
E7
E8
E9
EE
E1
E2
E4
E5
E6
E8
E9