SiBE18-821_C Troubleshooting for Outdoor Unit
Troubleshooting 389
7.5 Outdoor Fan Motor Abnormality
Remote
Controller
Display
E7
Method of
Malfunction
Detection
The error is determined according to the fan speed detected by Hall IC when the fan motor runs.
Malfunction
Decision
Conditions
îš„
When the fan runs with speed less than a specified one for 6 seconds or more when the fan
motor running conditions are met
îš„
When the error is generated 4 times, the system shuts down.
îš„
Clearing condition: Operate for 5 minutes (normal)
Supposed
Causes
îš„
Defective fan motor
îš„
Disconnection of connector
îš„
Fan does not rotate due to tangled foreign matters
Troubleshooting
Check No.03
Refer to P.425
Note: Refer to page 326 for detail about monitor mode.
Is
the connector
of the fan motor
disconnected?
Is there any
obstacle around the
outdoor fan?
Are the
resistances between
pins above
judgment?
Can the
outdoor fan be
turned smoothly by hand
after disconnecting the
connector?
Connect the connector.
Remove the obstacle.
Replace outdoor unit PCB.
(R13021)
NO
NO
YES
YES
YES
Replace the fan motor.
NO
Replace the fan motor.
NO
YES
Check No.03
Check the resistance of fan
motor connector.
Turn off the power and wait for 10 minutes.
Outdoor unit has 2 fan motors.
Identify the defective one (M1F or M2F) in
monitor mode. (See note.)
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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