SiBE121135_A Troubleshooting for Outdoor Unit
Service Diagnosis 212
7.9 DC Fan Lock
Error Code E7
Outdoor Unit LED
Display
A j 1 i 2 i 3 i 4 i 5 h
∗ LED5 is equipped only on the 5-room model.
Method of Error
Detection
An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC.
Error Decision
Conditions
îš„ The fan does not start in 30 seconds even when the fan motor is running.
îš„ If the error repeats, the system is shut down.
îš„ Reset condition: Continuous run for about 5 minutes without any other error
Supposed
Causes
îš„ Disconnection of the fan motor
îš„ Foreign matter stuck in the fan
îš„ Defective fan motor
îš„ Defective outdoor unit PCB
Troubleshooting
Check No.16
Refer to P.237
(R15890)
Caution
YES
YES
NO
YES
NO
NO
YES
NO
Turn on the power.
Rotate the fan.
Check No. 16
Check the rotation pulse input on
the outdoor unit PCB.
Turn off the power and
reconnect the connector.
Remove the foreign matter.
Replace the outdoor fan
motor.
Replace the outdoor unit
PCB.
Replace the outdoor fan
motor.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Fan motor connector
disconnected?
Foreign matter in or
around the fan?
Fan rotates
smoothly?
Pulse signal generated?
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