Sinclair SDV5 Series Service Manual page 53

2.9.5 Procedure
Confirm whether the power setting number is
corresponding with the outdoor unit
Replaced outdoor main control board
Notes:
1. Power setting switch is only for 100-160 model, 80 model don't need to setting
Power setting switch for 100/120 mode is S3, S3=100 is corresponding to 100 model and S3=010 is corresponding to 120 model.
Power setting switch for 140/160 mode is ENC2, ENC2=3 is corresponding to 140 model and ENCE=3 is corresponding to 160 model.
2.10 EF: PFC fault (Only for 100~160 model)
2.10.1 Digital display output
EF
2.10.2 Description
 PFC fault protection.
 The system stops running.
 Error code is displayed on the outdoor unit PCB.
2.10.3 Trigger / recover condition
 Trigger condition: if
 Recover condition:
DC generatrix
 Reset method: Manually restart.
2.10.4 Possible causes
 DC fan motor damaged.
 Main PCB damaged.
2.10.5 Procedure
Detect the 220V power supply input port to
see whether the voltage is stable
Power off for 3 minutes and then repower on
Check whether fault is cleared
Outdoor unit main control board damaged
52
E.9.
Yes
voltage is over 450V for continue 3 S or over 500V in the first 5 s in PFC star period.
DC generatrix
voltage is normal in the first 5 s in PFC star period.
EF
No
No
No
1
Waiting for 220V power supply
No
Yes
Power supply is abnormal
Power off and reset the
power number
stable