Daikin RXSQ24TAVJU Service Manual page 182

Troubleshooting by Error Code
4.8.2 Indoor Fan Motor Abnormality (FXSQ54TA, FXMQ15-54PB Models)
A6
Error Code
Applicable
FXSQ54TA, FXMQ15-54PB
Models
Method of Error Error from the current flow on the fan PCB
Detection Error from the rotation speed of the fan motor in operation
Error from the position signal of the fan motor
Error from the current flow on the fan PCB when the fan motor starting operation
Error Decision
Conditions
Supposed
Causes
169
An overcurrent flows.
The rotation speed is less than a certain level for 6 seconds.
A position error in the fan rotor continues for 5 seconds or more.
Clogging of a foreign matter
Disconnection of the fan motor connectors (X1A and X2A)
Disconnection of the connectors between the indoor unit main PCB (A1P) and fan PCB (A2P)
Defective fan PCB (A2P)
Defective fan motor
SiUS331708EA
Service Diagnosis