Outdoor Unit Fan Motor Abnormality - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

SiBE341027
2.8

Outdoor Unit Fan Motor Abnormality

E7
Remote
Controller
Display
Applicable RQYQ-PY1B
Models
Method of Error
Detection
Error Decision
Conditions
Supposed
Causes
Service Diagnosis
Detect an error based on the current value in the inverter PCB (as for motor 2, current value
in the fan PCB).
Detect an error malfunction for the fan motor circuit based on the number of rotation
detected by hole IC during the fan motor operation.
Overcurrent is detected for inverter PCB (A4P) or fan inverter PCB (A5P or A7P)
(System down is caused by 4 times of detection.)
In the condition of fan motor rotation, the number of rotation is below the fixed number for
more than 6 seconds. (System down is caused by 4 times of detection.)
Defective fan motor
Defective or connection error of the connectors/ harness between the fan motor and PCB
The fan can not rotate due to any foreign substances entangled.
Clear condition: Continue normal operation for 5 minutes
Troubleshooting by Remote Controller
113