5-2. Inverter compressor
Check point 1. Check connection
Check terminal connection of compres-
sor.
(loose or incorrect wiring)
U (R)
(Red)
V (S)
(White)
W (C) (T)
(Black)
Transistor PCB (IPM)
Check connection of transistor PCB.
(loose or incorrect wiring)
Transistor PCB (IPM)
TM303
TM304
TM305
Red
White
Black
Compressor
↓
Check point 2. Check winding resistance
Check winding resistance of each terminal.
Resistance value:
•
AOTG30KMTC: 0.642 Ω at 20 °C
•
AOTG34KMTC: 0.432 Ω at 20 °C
U (R)
V (S)
W (C) (T)
→ If the resistance value is 0 Ω or infinite, replace compressor.
↓
Check point 3. Replace inverter PCB
If check point 1 to 2 do not improve the symptom, replace main PCB.
5-2. Inverter compressor
- (03-76) -
5. Service parts information
TROUBLESHOOTING
TROUBLESHOOTING
Содержание AOTG30KMTC
Страница 4: ......
Страница 5: ...1 GENERAL INFORMATION 2019 06 27 SR_CH01_AS004EF_01 ...
Страница 13: ...2 TECHNICAL DATA AND PARTS LIST 2020 05 12 SR_CH02_AS004EF_05 ...
Страница 35: ...3 TROUBLESHOOTING 2020 05 08 SR_CH03_AS004EF_02 ...
Страница 38: ......
Страница 128: ...6 2 Outdoor unit 03 90 6 Thermistor resistance values TROUBLESHOOTING TROUBLESHOOTING ...
Страница 129: ...4 CONTROL AND FUNCTIONS 2020 05 08 SR_CH04_AS004EF_02 ...
Страница 132: ......
Страница 163: ...5 FILED WORKING 2019 07 24 SR_CH05_AS004EF_01 ...