Dc Fan Lock - Daikin Super Multi NX C-Series Service Manual

SiE12-411

5.13 DC Fan Lock

E7
Remote
Controller
Display
Outdoor Unit LED
A
Display
Method of A fan motor line error is detected by checking the high-voltage fan motor rpm being detected by
Malfunction the Hall IC.
Detection
" The fan does not start in 30 seconds even when the fan motor is running.
Malfunction
" The system will be shut down if the error occurs 16 times.
Decision
" Clearing condition: Continuous run for about 5 minutes (normal)
Conditions
" Fan motor breakdown
Supposed
" Harness or connector disconnected between fan motor and PCB or in poor contact
Causes
" Foreign matters stuck in the fan
Troubleshooting
Check No.15
Refer to P.212
Service Diagnosis
5 1 4 2 4 3 4 4
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Fan motor connector
disconnected?
NO
Foreign matters in or
around the fan?
NO
Get started.
Check No. 15
Check the outdoor unit PCB rpm
pulse input.
Pulse signal inputted?
YES
4
YES
YES
NO
Troubleshooting
Turn off the power and
reconnect the connector.
Remove.
Replace the outdoor unit
fan motor.
Replace the outdoor unit
PCB.
(R2843)
183