Daikin VRV S RXMQ10ARY1, Service Manual

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SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 243
5.29.2 Outdoor Fan Motor Abnormality (6/8 HP Models)
Applicable
Models
RXMQ6/8AR
Error Code
E7
Method of Error
Detection
 Detect according to the value of current flowing through the PCB.
 Detect error of the fan motor system according to the fan revolutions detected by the Hall IC
during the fan motor runs.
Error Decision
Conditions  When overcurrent is detected (Detecting overcurrent 4 times will shut down the system).
 When the fan revolutions fall below a given level for a period of 6 seconds while in fan motor
rotation mode (Detecting shortage of revolutions will shut down the system).
Supposed
Causes
 Fan motor failure
 Disconnection of harness/connector between the fan motor and the PCB
 Fan does not rotate due to foreign matter caught in it
 Clearing condition: fan motor performs normal operation for a period of 5 minutes