Service manual

93
Compressor
(MC)
INNER
PROTECTOR
MU-A07/A09WV
MUH-A07/A09WV
150i 5°C OPEN
90i10°C CLOSE
MU-A12WV
MUH-A12WV
155i 5°C OPEN
90i10°C CLOSE
Part name
Outdoor fan
motor INNER
(MF)
INNER FUSE
163i °C
CUT OFF
Check method and criterion
Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)
Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)
Figure
P
R
C
S
RED
BLK
WHT
MAINAUX.
Normal
MU-A07/A09WV
311~381
Ω
282~347 Ω
265~325 Ω
293~359 Ω
WHT-BLK
BLK-RED
WHTRED
BLK
MAIN
AUX.
FUSE
MU-A07WV - MUH-A07WV -
MU-A09WV - MUH-A09WV -
MU-A12WV - MUH-A12WV -
E1E1
E1E1
E1E1
Defrost
thermistor
(RT63)
<MUH-
A07/A09/A12WV>
Measure the resistance with a tester.
(Part temperature –10°C ~ 40°C)
5kΩ ~ 60kΩ
Normal
Abnormal
Open or short-circuit
MUH-A07/A09/A12WV
Normal
MUH-A07WV
3.41~4.18Ω
5.41~6.63Ω
2.99~3.67Ω
2.46~3.01Ω
2.96~3.63Ω
C-R
C-S
Abnormal
Open or short-circuit
4.02~4.92Ω
MUH-A09WV
MUH-A12WV
Normal
MU-A07WV
3.41~4.18Ω
5.41~6.63Ω
2.99~3.67Ω
2.46~3.01Ω
2.96~3.63Ω
C-R
C-S
Abnormal
Open or short-circuit
4.02~4.92Ω
MU-A09WV
MU-A12WV
Abnormal
Open or short-circuit
MU-A12WV
Normal
MUH-A07WV
311~381
Ω
282~347 Ω
265~325 Ω
293~359 Ω
WHT-BLK
BLK-RED
Abnormal
Open or short-circuit
MUH-A09/A12WV
P INNER PROTECTOR
Color of
lead wire
Color of
lead wire
3
2
OB307C-4.qxp 04.5.11 1:19 PM Page 93