Dc Fan Lock - Daikin SiENBE07-618_C Service Manual

SiENBE07-618_C

4.11 DC Fan Lock

E7
Remote Control
Display
Method of An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC.
Malfunction
Detection
„ The fan does not start in 30 seconds even when the fan motor is running.
Malfunction
„ If the error repeats 16 times, the system is shut down.
Decision
„ Reset condition: Continuous run for about 5 minutes without any other error
Conditions
„ Disconnection of the fan motor
Supposed
„ Foreign matters stuck in the fan
Causes
„ Defective fan motor
„ Defective outdoor unit PCB
Troubleshooting
Check No.15
Refer to P.100
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Fan motor
connector disconnected?
NO
Foreign matters
in or around the fan?
NO
Turn on the power.
Rotate the fan.
Fan rotates
smoothly?
YES
Check No. 15
Check the rotation pulse input on
the outdoor unit PCB.
Pulse signal generated?
YES
YES
YES
NO
NO
Troubleshooting
Turn off the power and
reconnect the connector.
Remove them.
Replace the outdoor fan
motor.
Replace the outdoor fan
motor.
Replace the outdoor unit
PCB.
(R11708)
71