-
102
-
NO
NO
Abnormal data check
with remote controller
After check reset,
fan runs on Me.
Check the
circumstances.
Was it reproduced?
Fan ON?
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
When the
motor is turning, does
the voltage at CnM 6 (Blue)
fluctuate between
DC 0 ~ 15 V?
Secondary
side of transformer
(red-red) 14V
or more
Does the
fan motor turn
smoothly by
hand?
Replacement indoor
unit control PCB
Replacement indoor
unit control PCB
Detective fan motor
Replacement indoor
unit control PCB
Replacement transformer
3 (Black) is GND.
(1)
(2)
3 (Black) is GND.
Note (2) CNM 3 (Black) is GND.
Is the voltage
at CnM 5 (Yellow) DC 1V
or higher?
CnM
1 and 3 (Red – Black)
DC280V?
Note (1) CnM 3 (Black) is GND.
CnM
4 and 3 (White-Black)
DC15V?
S
Only case of FDKN
●
Display conditions
If an indoor unit fan motor’s speed is detected to be less than
200 rpm continuously for 30 seconds, the fan motor stops for 2
seconds. After 2 seconds, it starts again, but this occurs 4 times
within a period of 1 hour.
