Mitsubishi Electric MUZ-A09YV-E1 Service Manual page 25

Mitsubishi Electric ilmalämpöpumput korjaa ja huoltaa pääkaupunkiseudulla: Jäähdytinpalvelu RefGroup Oy
2. Trouble criterion of main parts
MUZ-A09YV -
E1
MUZ-A09YVH -
E1
Part name
Defrost thermistor
(RT61)
Ambient temperature
thermistor(RT65)
Discharge temperature
thermistor(RT62)
Fin temperature
thermistor(RT64)
Compressor(MC)
Outdoor fan motor(MF)
INNER FUSE
0
152i : CUT OFF
5
R.V. coil(21S4)
LEV(Expansion valve)
Defrost heater(H)
MUZ-A12YV -
E1
MUZ-A12YVH -
E1
Check method and criterion
Measure the resistance with a tester. (Part temperature –15˚C ~ 40˚C)
Normal
5 k" ~ 65 k"
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
(Part temperature 0˚C ~ 40˚C)
Normal
150 k" ~ 600 k"
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
(Part temperature 0˚C ~ 40˚C)
Normal
30 k" ~ 180 k"
Measure the resistance between the terminals with a tester.
(Part temperature –15˚C ~ 40˚C)
MUZ-A09YV
MUZ-A09YVH
U-V
1.31 " ~ 1.66"
U-W
V-W
Measure the resistance between the terminals with a tester.
(Part temperature –15˚C ~ 40˚C)
Color of lead wire
WHT – BLK
BLK – RED
Measure the resistance between the terminals with a tester.
(Part temperature –15˚C ~ 40˚C)
Normal
1.90 k" ~ 2.39 k"
Measure the resistance with a tester.
(Part temperature : –15˚C ~ 40˚C)
Color of lead wire
WHT – RED
RED – ORN
YLW – BRN
BRN – BLU
Measure the resistance with a tester.
(Part temperature -15˚C ~ 40˚C)
Normal
341 " ~ 427 "
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Abnormal
Open or short-circuit
Abnormal
Open or short-circuit
Abnormal
Open or short-circuit
Normal
MUZ-A12YV
Abnormal
MUZ-A12YVH
Open or
0.42 " ~ 0.53 "
short-circuit
Normal Abnormal
299 " ~ 374 "
short-circuit
242 " ~ 304 "
Abnormal
Open or short-circuit
Normal Abnormal
Open or
39 " ~ 50 "
short-circuit
Abnormal
Open or short-circuit
25
WHT
2
V
FUSE
Open or
6
WHT
1
RED
4
ORN
Figure
RED BLK
3
1
W
U
BLK RED
WHT
LEV