Daikin RTSQ20PY1 Service Manual page 238

Troubleshooting by Indication on the Remote Controller
A6
Remote
Controller
Display
Applicable FXMQ50~140P
Models
Method of Detection from the current flow on the fan PCB
Detection from the RPM of the fan motor in operation
Malfunction
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
Malfunction
Decision
Conditions
Supposed
Causes
227
An overcurrent flows.
The RPM is less than a certain level for 6 seconds.
A position error in the fan rotor continues for 5 seconds or more.
An overcurrent flows.
The clogging of a foreign matter
The disconnection of the fan motor connectors (X1A and X2A)
The disconnection of the connectors between the indoor PCB (A1P) and fan PCB (A2P)
A failure in fan PCB (A2P)
A failure in the fan motor
SiBE31-801_C
Troubleshooting