Mitsubishi MUZ-HC25VA, Руководство по обслуживанию

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11-4. TROUBLE CRITERION OF MAIN PARTS
MUZ-HC25VA MUZ-HC35VA MUZ-HC35VAB
Part name Check method and criterion Figure
Defrost thermistor
(RT61)
Measure the resistance with a tester.
Refer to 11-6. “Test point diagram and voltage”, 1. “Inverter P.C.
board”, the chart of thermistor.
Discharge temperature
thermistor (RT62)
Fin temperature thermistor
(RT64)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it
up.
Refer to 11-6. “Test point diagram and voltage”, 1. “Inverter P.C.
board”, the chart of thermistor.
Compressor (MC)
Measure the resistance between the terminals with a tester.
(Part temperature -10 – 40°C)
Normal
U-V
U-W
V-W
MUZ-HC25 MUZ-HC35
1.65 – 2.03
Ω
1.49 – 1.84
Ω
Outdoor fan motor (MF)
INNER FUSE
RA6V21-AB
152
+0
-5
°C CUT OFF
RA6V21-BB
126 ± 2: CUT OFF
Measure the resistance between the terminals with a tester.
(Part temperature -10 – 40°C)
Color of lead wire
Normal
RA6V21-AB RA6V21-BB, BD
WHT – BLK 305 – 374
Ω
222 – 272
Ω
BLK – RED 247 – 304
Ω
245 – 300
Ω
R.V. coil (21S4)
Measure the resistance between the terminals with a tester.
(Part temperature -10˚C – 40°C)
Normal
1.32 – 1.62 k
Ω
Expansion valve coil (LEV)
HC35VA-
E2
HC35VAB-
E2
Measure the resistance using a tester.
(Part temperature: -10 – 40°C)
Color of lead wire Normal
WHT – RED
38 – 50
Ω
RED – ORN
YLW – BRN
BRN – BLU
WHT RED BLK
FUSE
2 3
W
U
V
1
WHT RED BLK
LEV
WHT
RED
ORN
YL
W
BRN BLU