[P12 error]
YES
[Action if the measurement is out of the range]
If any measurement in the above table is between 0 to several
100
Ω
, replace the indoor P.C. board together with the motor since
the indoor P.C. board is damaged.
NO
NO
NO
NO
NO
YES
YES
YES
YES
Model name for the indoor fan motor.
ICF-340WD94-1, CF-340WD94-2, ICF-340WD139-
2
<Checking procedure>
Measure the resistance of the following terminals with the tester.
Internal motor circuit is damaged if the measured value is out of
the range in below table.
Power off.
Replace the indoor P.C.
board (MCC-1643).
Replace the indoor P.C.
board (MCC-1643).
Check the indoor P.C.
board (MCC-1643).
If faulty
Replace
Disconnect the connector CN210 to
the indoor P.C. board
Is not
connection error or
disconnection on the connector
CN210 of indoor unit
P.C. board?
Does the
fan turn smoothly when
turned by hand?
Is each
resistance value
on the motor side of the
fan motor connector CN210
of the indoor P.C.
board correct?
Is F01 of the
indoor P.C.
board open?
Is R04 or R05
of the indoor P.C.
board open?
Pin No.
7
6
5
4
3
2
1
Color
Blue
Yellow
White
Black
-
-
Red
※
Measure by connecting the com side to
4
(Black) while measuring.
The measurement may vary.
Measurement place
Resistance value
a, b, c
I.
Between
4
(Black) -
1
(Red)
∞
(M
Ω
)
II.
Between
4
(Black) -
5
(White)
35k – 65k
Ω
III.
Between
4
(Black) -
6
(Yellow)
130k – 170k
Ω
IV.
Between
4
(Black) -
7
(Blue)
∞
(M
Ω
)
Replace the indoor
fan motor.
Replace the indoor
fan motor.
Repair the connector
connection.
FILE NO. SVM-18038
- 53 -
