Dc Fan Lock - Daikin FTXS20K2V1B Service Manual

SiBE041134

4.13 DC Fan Lock

E7
Remote
Controller
Display
Method of
An error is determined with the high-voltage fan motor rotation speed detected by the Hall IC.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
Check No.16
Refer to P.106
Service Diagnosis
The fan does not start in 15 ~ 60 seconds (depending on the model) even when the fan
motor is running.
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 11 minutes without any other error
Foreign matter stuck in the fan
Defective fan motor
Defective outdoor unit PCB
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. 16
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 the foreign
matters.
Replace the outdoor fan
motor.
Replace the outdoor fan
motor.
Replace the outdoor unit
PCB.
(R15675)
83