Troubleshooting By Error Code; Error Codes And Descriptions - Daikin RXSQ24TAVJU Service Manual

SiUS331708EA

4. Troubleshooting by Error Code

4.1

Error Codes and Descriptions

Error code
A0
Indoor Unit
A1
A3
A6
A7 (∗1)
A8
A9
AA
AF (∗1)
AJ
C1
C4
C5
C6
C9 (∗2)
CA
CC
CE (∗1)
CJ (∗2)
Outdoor Unit E1
E3
E4
E5
E7
E9
F3
H9
J3
J5
J6
J7
J9
JA
JC
L1
L4
Service Diagnosis
Operation
lamp
l
External protection device abnormality
l
Indoor unit PCB abnormality
l
Drain level control system abnormality
l
Fan motor lock, overload
Indoor fan motor abnormality
Blower motor not running
Indoor fan motor status abnormality
Low indoor airflow
k
Swing flap motor abnormality
l
Power supply voltage abnormality
Blower motor stops for over/under voltage
l
Electronic expansion valve coil abnormality, dust clogging
l
Gas furnace abnormality
k
Drain level above limit
l
Capacity determination device abnormality
l
Transmission abnormality between indoor unit PCB and fan PCB
Blower motor communication error
Climate Talk communication error
l
Heat exchanger liquid pipe thermistor abnormality
l
Heat exchanger gas pipe thermistor abnormality
l
Combination error between indoor unit PCB and fan PCB
Blower motor HP mismatch
Indoor blower does not have required parameters to function
l
Suction air thermistor abnormality
Remote sensor abnormality
l
Discharge air thermistor abnormality
k
Humidity sensor system abnormality
k
Infrared presence/floor sensor error
k
Remote controller thermistor abnormality
l
Outdoor main PCB abnormality
l
Activation of high pressure switch
l
Activation of low pressure sensor
l
Inverter compressor motor lock
l
Outdoor fan motor abnormality
l
Electronic expansion valve coil abnormality
l
Discharge pipe temperature abnormality
l
Outdoor air thermistor abnormality
l
Discharge pipe thermistor abnormality
l
Suction pipe thermistor abnormality
l
Outdoor heat exchanger deicer thermistor abnormality
l
Outdoor heat exchanger liquid pipe thermistor abnormality
l
Subcooling heat exchanger gas pipe thermistor abnormality
l
High pressure sensor abnormality
l
Low pressure sensor abnormality
l
PCB (for inverter compressor) abnormality
l
Radiation fin temperature rise abnormality
Troubleshooting by Error Code
Description
k: ON h: OFF l: Blink
Reference
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