SiUS281811EA Troubleshooting by Error Codes
Part 6 Service Diagnosis 259
4.32 Outdoor Fan Motor Abnormality
Error Code E7
Applicable
Models
All outdoor units
Method of Error
Detection
The fan motor circuit error is detected based on the rotation frequency detected by Hall IC during
the fan motor operation.
Error Decision
Conditions
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.)
Supposed
Causes
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
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