Mitsubishi MCFH-13NV Service Manual page 45

11-2-2. Trouble criterion of main parts
MCFH-13NV - MCFH-18NV -
E4
MCFH-24NV -
E3
Part name
Room
Measure the resistance with a tester.
temperature
(Part temperature 10°C ~ 30°C)
thermistor (RT11)
Indoor coil
thermistor (RT12)
Defrost
Measure the resistance with a tester.
thermistor
(Part temperature - 10°C ~ 40°C)
(RT61)
Ambient temper-
ature thermistor
(RT63)
MUCFH-24NV
only
Measure the resistance between the terminals with a tester.
(Part temperature -10°C ~ 40°C)
Compressor
(MC)
C-R
C-S
Measure the resistance between the terminals with a tester.
(Part temperature10°C ~ 30°C)
Indoor fan
motor
(MF)
Measure the resistance between the terminals with a tester.
(Part temperature -10°C ~ 40°C)
Outdoor fan
motor
WHT-BLK
(MF)
BLK-RED
BLK-YLW
YLW-RED
Measure the resistance between the terminals with a tester.
(Part temperature10°C ~ 30°C)
Vane
motor
(MV)
MUCFH-13NV -
E3
MUCFH-24NV -
Check method and criterion
Normal
8kΩ ~ 20kΩ
Normal
5kΩ ~ 60kΩ
13NV
1.86~2.28Ω
3.50~4.29Ω
13NV
WHT-BLK 175~190Ω
BLK-YLW 66~72Ω
YLW-BLU 45~50Ω
BLU-BRN 30~33Ω
BRN-RED 22~24Ω
13NV
155 ~ 190Ω
364 ~ 446Ω
RED-PNK/ORN
BRN-YLW/BLU
MUCFH-18NV -
E4
E3
Abnormal
Opened or short-circuited
Abnormal
Opened or short-circuited
Normal
18NV 24NV
1.05~1.30Ω 0.84~1.04Ω
2.38~2.92Ω 1.82~2.24Ω
Normal
Abnormal
18/24NV
79~87Ω
63~69Ω
Opened or
34~38Ω
short-circuited
25~29Ω
13~15Ω
Normal
24NV
18NV
55 ~ 68Ω
102 ~ 126Ω
97 ~ 120Ω
26 ~ 33Ω
55 ~ 68Ω
Normal Abnormal
Opened or
329 357Ω
~
short-circuited
45
E3
Figure
WHT
C
Abnormal
S
Opened or
RED
short-circuited
13/18/24NV
BLK YLW BLU BRN
13/18NV
MAIN
AUX
P
Abnormal
BLK RED ORN WHT
24NV
Opened or
MAIN
short-circuited
AUX.2
AUX.1
BLK YLW RED ORN WHT
PNK
RED
ORN
YLW
p
: Inner protector
R
BLK
P
GRN
YLW
RED ORN
WHT
P
ROTOR
BRN BLU