Table of Contents
Advertisement
2. Trouble criterion of main parts
MCF-C13UV -
E1
MCF-C18UV -
E1
MCF-C24UV -
E1
Part name
Room
Measure the resistance with a tester.
temperature
(Part temperature 10°C ~ 30°C)
thermistor (RT11)
Indoor coil
thermistor
(RT12)
Compressor
(MC)
Measure the resistance between the terminals with a tester.
(Part wiring temperature -10°C ~ 40°C)
INNER
PROTECTOR
MUCF-C13UV
i 5: OPEN
150
90 i 10: CLOSE
MUCF-C18UV
155 i 5: OPEN
90 i 10: CLOSE
MUCF-C24UV
160 i 5: OPEN
90 i 10: CLOSE
Measure the resistance between the terminals with a tester.
(Part wiring temperature10°C ~ 30°C)
Indoor fan
motor
(MF)
INNER
PROTECTOR
120 i 15: OPEN
77 i 15: CLOSE
Outdoor fan
motor
Measure the resistance between the terminals with a tester.
(MF)
(Part wiring temperature -10°C ~ 40°C)
INNER
PROTECTOR
MUCF-C13UV
135 i 5: OPEN
MUCF-C18UV
MUCF-C24UV
145 i 8: OPEN
Reference
(88 i 15: CLOSE)
Measure the resistance between the terminals with a tester.
(Part wiring temperature10°C ~ 30°C)
Vane
motor
(MV)
MUCF-C13UV -
E1
MUCF-C18UV -
E1
MUCF-C24UV -
E1
Check method and criterion
Normal
8kΩ ~ 20kΩ
Terminal
MUCF-C13UV
Ω
C-R
1.98~2.43
Ω
C-S
3.59~4.39
Color of
lead wire
MCF-C13UV
Ω
WHT-BLK
195~212
Ω
BLK-YLW
44~48
Ω
YLW-BLU
31~34
Ω
BLU-BRN
42~47
Ω
BRN-RED
22~25
Color of
lead wire
MUCF-C13UV
WHT-BLK
155 ~ 190Ω
BLK-RED
364 ~ 446Ω
___
BLK-YLW
RED-PNK/ORN
BRN-YLW/BLU
Abnormal
Open or short-circuit
Normal
MUCF-C18UV
MUCF-C24UV
Ω
Ω
0.95~1.17
0.59~0.73
Ω
Ω
short-circuit
1.92~2.36
1.78~2.18
Normal
MCF-C18UV
MCF-C24UV
Ω
Ω
79~87
80~88
Ω
Ω
63~69
44~49
Ω
Ω
34~38
35~39
short-circuit
Ω
Ω
25~29
43~47
Ω
Ω
13~15
13~15
Normal
MUCF-C18UV
MUCF-C24UV
102 ~ 126Ω
71 ~ 88Ω
90 ~ 111Ω
97 ~ 120Ω
short-circuit
___
81~ 100Ω
Normal
329
357Ω
~
short-circuit
33
Abnormal
Open or
Abnormal
Open or
Abnormal
Open or
Abnormal
Open or
Figure
WHT
C
S
R
BLK
RED
MAIN
P
GRN
YLW
BLK
YLW BLU BRN
RED ORN
WHT
MUCF-C13UV
MAIN
AUX.
P
RED WHT
BLK
MUCF-C18UV
MAIN
AUX.
P
BLK
RED ORN WHT
MUCF-C24UV
MAIN1
AUX.
MAIN2 P
RED ORN WHT
YLW
BLK
PNK
ROTOR
RED
ORN
YLW
BRN
BLU
P
: INNER PROTECTOR
Advertisement
Table of Contents
