Trouble Criterion Of Main Parts - Mitsubishi Electric SUH-1.6VR2 Technical & Service Manual

9-2. Trouble criterion of main parts

SUH-1VR.TH SUH-1.6VR.TH
SUH-1.6VR2.TH
SU-1.6NR.TH
SU-1VR.TH SU-1.6VR.TH
SU-1.6VR2.TH
SU-1VR.TH-T SU-1.6VR.TH-T
SU-1.6VR2.TH-T
Part name
Measure the resistance with a tester.
(Part temperature 10°C ~ 40°C)
Defrost
thermistor
(Outdoor)
Measure the resistance between the terminal with a tester.
(Coil wiring temperature 10°C ~ 40°C)
Compressor
C-R
C-S
C-R
C-S
Measure the resistance between the terminals with a tester.
(Coil wiring temperature -10°C ~ 40°C)
Outdoor fan
motor
WHT-BLK
BLK-RED
BLK-YLW
YLW-RED
WHT-BLK
BLK-RED
BLK-YLW
SUH-2VR.TH
SUH-2VR
SUH-2VR
SU-2NR.TH
SU-2VR.TH
SU-2VR
SU-2VR.TH-T
SU-2VR
Check method and criterion
Normal
5kΩ~60kΩ Opened or short-circuited
Normal
SUH-
1VR 1.6VR 1.6VR2
2.9~3.6Ω 1.9~2.3Ω 1.6~2.0Ω
5.1~6.3Ω 2.4~4.2Ω 2.6~3.2Ω
Normal
SU-
1 1.6
VR
NR VR VR2
2.9~ 1.5~ 1.9~ 1.6~
3.6Ω 1.9Ω 2.3Ω 2.0Ω
5.1~ 2.4~ 3.4~ 2.6~
6.3Ω 3.0Ω 4.2Ω 3.2Ω
Normal
SUH-
1VR 1.6VR, 1.6VR2
311~381Ω 115~141Ω
283~347Ω 118~146Ω
— —
— —
Normal
SU-
1 1.6
VR NR, VR, VR2
311~381Ω 115~141Ω
283~347Ω 118~146Ω
— —
SUH-2.5VR.TH
.TH
1
.TH
2
SU-2.5NR.TH
SU-2.5VR.TH
.TH
1
SU-2.5VR.TH-T
.TH-T
1
Abnormal
2VR, 2VR , 2VR 2.5VR
1 2
0.9~1.2Ω 0.8~1.0Ω
short-circuited
2.0~2.4Ω 1.8~2.2Ω
2 2.5
VR, VR
NR NR VR
1
0.8~ 0.9~ 0.7~ 0.8~
1.0Ω 1.2Ω 0.9Ω 1.0Ω
1.7~ 2.0~ 1.6~ 1.8~ short-circuited
2.1Ω 2.4Ω 2.0Ω 2.2Ω
2VR, 2VR , 2VR 2.5VR
1 2
102~126Ω 55~68Ω
98~120Ω —
— 27~33Ω short-circuited
— 55~68Ω
2 2.5
NR, VR, VR NR, VR
1
102~126Ω 72~88Ω
98~120Ω 90~110Ω
short-circuited
— 81~99Ω
31
Figure
Abnormal
Opened or
WHT
C
S
RED
Abnormal
Opened or
1VR
MAIN
AUX
FUSE
Abnormal
BLK RED
1.6, 2NR
1.6, 2VR
1.6VR2, 2VR
Opened or
MAIN
AUX
P
BLK RED ORN WHT
Abnormal
SUH-2.5VR
MAIN
AUX.1
AUX.2
Opened or
BLK YLW RED ORN WHT
SU-2.5NR
SU-2.5VR
MAIN
AUX.1
AUX.2
P
YLW BLK RED ORN WHT
p
R
BLK
WHT
, 2VR
1 2
P
: Inner protector