Service Manual

SiUS281811E Troubleshooting by Error Codes
Part 6 Service Diagnosis 193
4.9.2 Indoor Fan Motor Abnormality (FBQ-P Models)
Error Code A6
Applicable
Models
FBQ-P
Method of Error
Detection
Error from the current flow on the fan PCB
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
 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.
Supposed
Causes
 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