Outdoor Fan Motor Abnormality - Daikin RMXS-L Series Service Manual

Troubleshooting for Outdoor Unit
7.5

Outdoor Fan Motor Abnormality

E7
Error Code
Method of Error The error is determined according to the fan speed detected by Hall IC when the fan motor runs.
Detection
Error Decision
Conditions
Supposed
Causes
Troubleshooting
Check No.32
Refer to P.265
Note: Refer to page 175 for details about monitor mode.
232
When the fan runs with speed less than a specified one for 6 seconds or more when the fan
motor running conditions are met
When the error is generated 4 times, the system shuts down.
Clearing condition: Operate for 5 minutes (normal)
Defective fan motor
Disconnection of connector
Fan does not rotate due to tangled foreign matters
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Outdoor unit has 2 fan motors.
Identify the defective one (M1F or M2F) in
monitor mode. (Refer to Note)
Turn off the power and wait for 10 minutes.
Is
the connector
of the fan motor
disconnected?
NO
Is there any
obstacle around the
outdoor fan?
NO
Can the
outdoor fan be
turned smoothly by hand
after disconnecting the
connector?
YES
Check No.32
Check the resistance of fan
motor connector.
Are the
resistances between
pins above
judgment?
YES
YES
YES
NO
NO
SiUS181631EA
Connect the connector.
Remove the obstacle.
Replace the fan motor.
Replace the fan motor.
Replace the main PCB
(A1P).
(R23966)
Troubleshooting