Outdoor Fan Motor Abnormality - Daikin VRV IV-S RXTQ-TAVJU Series Service Manual

Troubleshooting by Error Code

4.23 Outdoor Fan Motor Abnormality

E7
Error Code
Applicable
All outdoor units
Models
Method of Error The fan motor circuit error is detected based on the rotation frequency detected by hole IC during
Detection the fan motor operation.
Error Decision In the condition of fan motor rotation, the number of rotation is below the fixed number for more
Conditions than 6 seconds. (System down is caused by 4 times of detection.)
Supposed
Causes
173
Defective fan motor
Defect or connection error of the connectors/ harness between the fan motor and PCB
The fan can not rotate due to obstruction of foreign matter.
Clear condition: Continue normal operation for 5 minutes
Missing phase L1 and missing phase N
SiUS331604E
Service Diagnosis