Dc Fan Lock (Outdoor Fan) - Daikin FTX-N Series Service Manual

SiUS041638EA

4.13 DC Fan Lock (Outdoor Fan)

E7
Error Code
Method of Error
An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC.
Detection
Error Decision
 The fan does not start in 15 ~ 30 seconds even when the fan motor is running.
Conditions
 If the error repeats, the system is shut down.
 Reset condition: Continuous run for about 11 minutes without any other error
Supposed
 Disconnection of the fan motor
Causes
 Foreign matter stuck in the fan
 Defective fan motor
 Defective outdoor unit PCB
Troubleshooting
Check No.16
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 matter in or
around the fan?
NO
Turn on the power.
Rotate the fan.
Fan rotates
smoothly?
YES
Check No. 16
Check the rotation pulse input on
the outdoor unit PCB (main PCB).
Pulse signal generated?
YES
YES
YES
NO
NO
Troubleshooting
Turn off the power and
reconnect the connector.
Remove the foreign matter.
Replace the outdoor fan
motor.
Replace the outdoor fan
motor.
Replace the outdoor unit
PCB (main PCB).
(R22877)
76