Fujitsu ADUH09LUAS1 Service Manual

4-5. Outdoor unit fan motor
¢ Model: AOUH09LUAS1
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 outdoor 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 outdoor 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) Earth terminal (GND)
5 (→hite) Control voltage (Vcc)
6 (Yellow) Speed command (Vsp)
7 (Brown) Feed back (FG)
4-5. Outdoor unit fan motor - (03-50) - 4. Service parts information
TROUBLESHOOTING TROUBLESHOOTING

Fujitsu ADUH09LUAS1 Specifications

General

Brand	Fujitsu
Model	ADUH09LUAS1
Category	Air Conditioner
Language	English