Daikin VRV III-S RXYMQ36 48PVJU Service Manual page 125

Troubleshooting by Indication on the Remote Controller
A6
Remote
Controller
Display
Applicable FXMQ
Models
Method of
Detection from the current flow on the fan PCB
Malfunction Detection from the RPM of the fan motor in operation
Detection from the position signal of the fan motor
Detection
Detection from the current flow on the fan PCB when the fan motor starting operation
 An overcurrent flows.
Malfunction
 The RPM is less than a certain level for 6 seconds.
Decision
 A position error in the fan rotor continues for 5 seconds or more.
Conditions
 The clogging of a foreign matter
Supposed
 The disconnection of the fan motor connectors (X1A and X2A)
Causes
 The disconnection of the connectors between the indoor unit PCB (A1P) and fan PCB (A2P)
 Failure of fan PCB (A2P)
 Failure of the fan motor
116
SiUS34-907
Troubleshooting