35
Part name
Check method and criterion
Figure
Defrost thermistor
(RT61)
Ambient temperature
thermistor (RT65)
Outdoor heat exchanger
temperature thermistor
(RT68)
Measure the resistance with a tester.
Refer to 11-7. “Test point diagram and voltage”, 1. “Outdoor electronic
control P.C. board”, for the chart of thermistor.
Discharge temperature
thermistor (RT62)
Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
Refer to 11-7. “Test point diagram and voltage”,1. “Outdoor electronic
control P.C. board”, for the chart of thermistor.
Fin temperature
thermistor (RT64)
Compressor
Measure the resistance between terminals using a tester.
(Winding temperature: -10 °C ~ 40 °C)
Normal
GA50
GA60VA-
E1
,
E2
GA60VA
-
E3
GA71VA
0.40
Ω
~ 0.49
Ω
0.86
Ω
~ 1.06
Ω
1.29
Ω
~ 1.49
Ω
Outdoor fan motor
Measure the resistance between lead wires using a tester.
(Part temperature: -10 °C ~ 40 °C)
Color of lead wire
Normal
RED - BLK
13.4
Ω
~ 16.4
Ω
BLK - WHT
WHT - RED
R. V. coil
Measure the resistance using a tester. (Part temperature: -10 °C ~ 40 °C)
Normal
MUZ-GA60VA
-
E3
Other models
1.32 k
Ω
~ 1.62 k
Ω
2.6 k
Ω
~ 3.3 k
Ω
Linear expansion valve
Measure the resistance using a tester. (Part temperature: -10 °C ~ 40 °C)
Color of lead wire
Normal
WHT - RED
37.4
Ω
~ 53.9
Ω
RED - ORN
YLW - BRN
BRN - BLU
High pressure switch
(HPS)
MUZ-GA60VA
-
E3
MUZ-GA71VA
Pressure
3.7 ± 0.15 MPa
Close
4.8 MPa
Open
MUZ-GA50VA
MUZ-GA60VA
MUZ-GA71VA
11-5. TROUBLE CRITERION OF MAIN PARTS
W
U
V
WHT
RED
BLK
RED
YLW BRN
ORN
BLU
LEV
WHT
U
RED
WHT
BLK
V
W
(W)
(V)
(U)
0.05
0.1
+-
Summary of Contents for MUZ-GA50VA-E1
Page 10: ...10 MUZ GA60VA E3 ...