4-4. Indoor unit fan motor
¢ Models: ARXG36KMLA and ARXG45KMLA
WARNING
→hen you approach this part, please cut off the power supply and wait for a while until DC voltage
has been discharged.
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 DC voltage
4 Earth terminal
1 (Red) DC voltage (Vm)
2 No function
3 No function
4 (Black) Earth terminal (GND)
5 (→hite) Control voltage (Vcc)
6 (Yellow) Speed command (Vsp)
7 (Brown) Feed back (FG)
4-4. Indoor unit fan motor - (03-54) - 4. Service parts information
TROUBLESHOOTING
TROUBLESHOOTING
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