SiBE12-933_A
Troubleshooting
Service Diagnosis
187
4.10 DC Fan Lock
Remote
Controller
Display
E7
Method of
Malfunction
Detection
A fan motor or related error is detected by checking the high-voltage fan motor rpm being
detected by the Hall IC.
Malfunction
Decision
Conditions
The fan does not start in 60 seconds even when the fan motor is running.
The system is shut down if the error occurs 16 times.
Clearing condition: Continuous run for about 11 minutes (normal)
Supposed
Causes
Fan motor breakdown
Harness or connector disconnected between fan motor and PCB or in poor contact
Foreign matters stuck in the fan
Troubleshooting
Check No.15
Refer to P.221
(R7139)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Fan motor connector
disconnected?
NO
Get started.
Foreign matters in or
around the fan?
NO
Check No. 15
Check the outdoor unit PCB rpm
pulse input.
Pulse signal inputted?
NO
YES
YES
YES
Turn off the power and
reconnect the connector.
Remove.
Replace the outdoor unit fan
motor.
Replace the outdoor unit
PCB.