Mitsubishi Electric MSH09TW Service Manual page 81

MSH09TW
MSH09TW -
MSH12TN
MSH12TN -
MSH15TN
MSH15TN -
MSH17TN
MSH17TN -
Part name
Measure the resistance between the terminals with a tester.
(Part temperature 50°F ~ 86°F)
Indoor fan
motor(MF)
Measure the voltage Power ON.
MSH09TW
MSH09TW -
U1
CUT OFF
262°F
MSH12/15/17TN
MSH12/15/17
-
TN
U1
CUT OFF
293°F
Measure the resistance between the terminals with a tester.
Outdoor fan
(Part temperature14°F ~ 104°F)
motor(MF)
OPEN
302°F i 9°F
WHT-BLK
CLOSE
203°F i 18°F
BLK-RED
Measure the resistance between the terminals with a tester.
(Part temperature 50°F ~ 86°F)
Vane motor(MV)
MUH09TW
MUH09TW -
U1
MUH12TN
MUH12TN -
U1
MUH15TN
MUH15TN -
U1
MUH17TN
MUH17TN -
U1
Check method and criterion
WHT-BLK
BLK-RED
Normal
MSH09
BRN-YLW 4.5 ~ 5.5V
(When fan revolved one time)
YLW-GRY
0V 5V 0V (Approx.)
MSH12/15
Ω
WHT-BLK
65~72
Ω
BLK-YLW
8~10
Ω
YLW-BLU
4~6
BLU-BRN
5~7Ω
Ω
BRN-RED
28~31
MUH09 MUH12
Ω
54~67 116~143
Ω
58~72 215~264
Normal
MSH09 MSH12/15/17
BRN-other one RED-other one
282 ~ 306Ω 358 ~ 388Ω
MUH12TN -
U1
MUH15TN -
U1
U1
U1
Normal
MSH09
76~83 Ω
70~76 Ω
Abnormal
Remain 0V or 5V
Normal
MSH17
Ω
52~57
Ω
10~12
Ω
4~5
5~6Ω
Ω
35~39
Normal
MUH15 MUH17
Ω Ω
102~126 60~75
Ω Ω
97~120 77~96
Abnormal
Open or
short-circuit
81
U2
U2
MSH09
Abnormal
Open or
MAIN
short-circuit
AUX.
MSH12/15/17
Abnormal
AUX.2
Open or
AUX.3
short-circuit
MUH09/12
Abnormal
MUH15/17
Ω
Open or
Ω
short-circuit
MSH09
MSH12/15/17
P P :INNER PROTECTOR
Figure
WHT
1
RED
2
BLK 3
FUSE
YLW
1
GRY
2
BRN
3
BLK
AUX.1
YLW
MAIN
BLU
BRN FUSE
AUX.4
RED
WHT
ORN
BLK
P
AUX.
MAIN
RED
WHT
BLK
P
AUX.
MAIN
RED
ORN
WHT
RED
ROTOR
YLW
BRN
GRN
ORN
PNK
ROTOR
ORN
RED
YLW BLU