Troubleshooting for Outdoor Unit SiBE121021_C
338 Service Diagnosis
7.5 DC Fan Lock
Remote
Controller
Display
E7
Outdoor Unit LED
Display
A
j
1
i
2
i
3
i
4
i
5
h
Method of
Malfunction
Detection
An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC.
Malfunction
Decision
Conditions
îš„
The fan does not start in 30 seconds even when the fan motor is running.
îš„
If the error repeats 16 times, the system is shut down.
îš„
Reset condition: Continuous run for about 5 minutes without any other error
Supposed
Causes
îš„
Defective fan motor
îš„
Disconnection of the fan motor
îš„
Foreign matters stuck in the fan
Troubleshooting
Check No.16
Refer to P.367
(R14410)
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 them.
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 matters in or
around the fan?
Fan rotates
smoothly?
Pulse signal generated?
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