Muh-Xv07Uv - E1 - Mitsubishi Electric MSH-XV07UV Service Manual

2. Trouble criterion of main parts
MSH-XV07UV -
E1
MSH-XV09UV -
E1
Part name
Room
Measure the resistance with a tester. (Part temperature 10°C ~ 30°C)
temperature
thermistor(RT11)
Indoor coil
thermistor(RT12)
Measure the resistance with a tester. (Part temperature –10°C ~ 40°C)
Defrost
thermistor(RT61)
Measure the resistance between the terminals with a tester.
Compressor
(Part temperature –10°C ~ 40°C)
(MC)
Color of
INNER
lead wire
PROTECTOR
C-R
150i5: ON
C-S
90i10: OFF
Measure the resistance between the terminals with a tester.
(Part temperature10°C ~ 30°C)
Indoor fan
motor(MF)
INNER FUSE
Measure the voltage Power ON.
136i3: ON
Measure the resistance between the terminals with a tester.
Part temperature –10°C ~ 40°C)
Outdoor fan
Color of
motor(MF)
lead wire
WHT-BLK
INNER FUSE
BLK-RED
163i3: ON
BLK-YLW
YLW-RED
Measure the resistance between the terminals with a tester.
(Part temperature 10°C ~ 30°C)
Vane motor
(MV)
Measure the resistance with a tester. (Part temperature –10°C ~ 40°C)
R.V. coil(21S4)
MSH-XV12UV -
E1
Check method and criterion
Normal
8kΩ ~ 20kΩ
Normal
5kΩ ~ 60kΩ
MUH-XV07UV MUH-XV09UV
3.68 ~ 4.51Ω 2.93 ~ 3.60Ω
5.08 ~ 6.22Ω
5.30 ~ 6.49Ω
Color of
lead wire
MSH-XV07/09UV
WHT-BLK 396 ~ 430Ω
BLK-RED
320 ~ 348Ω
Color of lead wire
BRN-YLW
(When fan revolved one time)
YLW-GRY
MUH-XV07/09UV
311 ~ 381Ω
283 ~ 347Ω
—
—
Normal
BRN - other one
282 ~ 306Ω
Normal
2.673kΩ ~ 3.268kΩ
MUH-XV07UV -
E1
MUH-XV09UV -
E1
Abnormal
Open or short-circuit
Abnormal
Open or short-circuit
Normal
MUH-XV12UV
1.87 ~ 2.30Ω
3.44 ~ 4.22Ω
Normal
MSH-XV12UV
303 ~ 329Ω
287 ~ 311Ω
Normal
4.5 ~ 5.5V
Remain 0V or 5V
0V 5V 0V
(Approx.)
Normal
MUH-XV12UV
265 ~ 325Ω
292 ~ 359Ω
—
—
Abnormal
Open or short-circuit
Abnormal
Open or short-circuit
43
MUH-XV12UV -
E1
Abnormal
Open or
short-circuit
Abnormal
Open or
short-circuit
Abnormal
Abnormal
Open or
short-circuit
Figure
WHT
C
P
AUX. MAIN
S R
BLK
RED
MAIN
AUX.
FUSE
MAIN
AUX.
FUSE
BLK
RED WHT
RED
ROTOR
YLW
BRN
ORN GRN
P P :INNER PROTECTOR