Outdoor Unit Fan Motor - Fujitsu ASTG30KMTC Service Manual

5-5. Outdoor 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 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)
1 (Red) DC voltage (Vm)
2 No function
3 No function
4 (Black) Earth terminal (GND)
5 (White) Control voltage (Vcc)
6 (Yellow) Speed command (Vsp)
7 (Brown) Feed back (FG)
5-5. Outdoor unit fan motor
Terminal function
(symbol)
- (03-80) -
5. Service parts information