4-4. Indoor unit fan motor
Check point 1. Check rotation of fan
Rotate the fan by hand when operation is off.
(Check if fan is caught, dropped off or locked motor)
→ If fan or bearing is abnormal, replace it.
Check point 2. Check resistance of indoor fan motor
Refer to below. Circuit-test “Vm” and “GND” terminal
NOTE:
Vm: DC voltage, GND: Earth terminal
→ If they are short-circuited (below 300 kΩ), replace indoor fan motor and controller PCB.
Pin number
(wire color)
Terminal function
(symbol)
1 (Red)
DC voltage (Vm)
2
No function
3
No function
4 (Black)
Ground terminal (GND)
5 (White)
Control voltage (Vcc)
6 (Yellow)
Speed command (Vsp)
7 (Blue)
Feed back (FG)
4-4. Indoor unit fan motor
- (03-48) -
4. Service parts information
TROUBLESHOOTING
TROUBLESHOOTING
Summary of Contents for General AOHG07KMCC
Page 4: ......
Page 5: ...1 GENERAL INFORMATION 2022 02 03 SR_CH01_AS061EG_01 ...
Page 15: ...2 TECHNICAL DATA AND PARTS LIST 2022 02 03 SR_CH02_AS061EG_01 ...
Page 41: ...3 TROUBLESHOOTING 2022 02 03 SR_CH03_AS061EG_01 ...
Page 44: ......
Page 97: ...4 CONTROL AND FUNCTIONS 2022 02 03 SR_CH04_AS061EG_01 ...
Page 133: ...5 FILED WORKING 2022 02 03 SR_CH05_AS061EG_01 ...