Outdoor Unit Fan Motor - Fujitsu ASUG12LZBS 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 main PCB.
FM
5-5. Outdoor unit fan motor
1 (Red)
2
Red 1
3
Black 4
5
White
6
Yellow
4 (Black)
7
Brown
5 (White)
6 (Yellow)
7 (Brown)
- (03-74) -
Pin number Terminal function
(wire color)
DC voltage (Vm)
No function
No function
Earth terminal (GND)
Control voltage (Vcc)
Speed command (Vsp)
Feed back (FG)
(symbol)
5. Service parts information