111
Part name
Check method and criterion
Measure the resistance using a tester.
(Part temperature -10°C ~ 40°C)
Defrost thermistor
Evaporation/Gas pipe tem-
perature thermistor
Normal
abnormal
5k
Ω
~ 55k
Ω
Open or short-circuit
Normal
abnormal
100k
Ω
~ 250k
Ω
Opened or short-circuited
Normal
abnormal
2.6k
Ω
~ 3.3k
Ω
Open or short-circuit
Normal
abnormal
1Each phase 2.25
Ω
~ 2.76
Ω
Open or short-circuit
Measure the resistance using a tester, after warming up the thermistor by holding by hand.
(Part temperature : 20°C ~40°C)
Discharge temperature
thermistor
Measure the resistance between terminals using a tester.
(Winding temperature : -10°C ~ 40°C)
Compressor
W
U
V
WHT
RED
BLK
Measure the resistance between lead wires using a tester.
(Part temperature : -10°C ~ 40°C)
Outdoor fan motor
Normal
WHT - BLK
BLK - YLW
BLK - RED
Open or
short-circuit
WHT
Protector specification
Short
Open
87
I
15
:
135
I
5
:
YLW
P
ORN
RED
BLK
123.0
Ω
~ 150.0
Ω
30.0
Ω
~ 36.0
Ω
181.0
Ω
~ 221.0
Ω
abnormal
Measure the resistance using a tester. (Part temperature -10°C ~ 40°C)
R. V. coil
Measure the resistance using a tester.(Part temperature -10°C ~ 40°C)
Linear expansion valve
LEV
WHT
RED
YLW BRN
ORN
BLU
Lead wire color
Normal
WHT - RED
RED - ORN
YLW - BRN
BRN - BLU
Abnormal
Open or short-circuit
37.4
Ω
~ 53.9
Ω
P
Inner protector
FUSE
BLK
RED WHT
Part name
Outdoor fan
motor
(MF, MF61)
INNER FUSE
MUX-A10WV
145°C OPEN
INNER
PROTECTOR
MUX-A19/A20/A25/
A26WV
145
i
8°C OPEN
Check method and criterion
Figure
Measure the resistance between the terminals with a tester.
(Coil wiring temperature -10°C ~ 40°C)
Measure the resistance with a tester. (Part temperature -10°C ~ 40°C)
MUX-A19/A20/A25/
A26WV
Normal
1410 ~ 1730
Ω
Abnormal
Open or short-circuit
Normal
MUX-A10WV
196 ~ 241
Ω
208 ~ 246
Ω
Abnormal
Open or
short-circuit
WHT-BLK
BLK-RED
Solenoid coil
21R, 21RA,
21RB, 21R1,
21R2, 21R3,
21R4
BLK RED
WHT
P
MUX-A10WV
MUX-A10WV -
MUX-A19WV -
MUX-A20WV -
MUX-A25WV -
MUX-A26WV -
E1
E1
E1
E1
E1
Measure the resistance between the terminals with a tester.
(Coil wiring temperature -10°C ~ 40°C)
Normal
MUX-A25WV
79 ~ 98
Ω
129 ~ 158
Ω
MUX-A26WV
69 ~ 85
Ω
70 ~ 86
Ω
Abnormal
Open or
short-circuit
WHT-BLK
BLK-RED
MUX-A19WV
79 ~ 98
Ω
129 ~ 158
Ω
MUX-A20WV
79 ~ 98
Ω
129 ~ 158
Ω
MXZ-A18WV -
E1
OB307A4.qxp 03.2.19 4:11 PM Page 111