Fujitsu ASYG07-14KGTF Service Manual page 318

¢ Models: AGYG09–14KVCA
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.
Upper fan motor
Pin number
(wire color)
1 (Blue)
2 (Yellow)
3 (White)
4 (Black)
5
6 (Red)
Lower fan motor
Pin number
(wire color)
1 (Blue)
2 (Yellow)
3 (White)
4 (Black)
5
6
7 (Red)
5-4. Indoor unit fan motor
Terminal function
(symbol)
Revolution pulse (PG)
Speed command (Vsp)
Control voltage (Vcc)
Earth terminal (GND)
No function
DC voltage (Vm)
Terminal function
(symbol)
Revolution pulse (PG)
Speed command (Vsp)
Control voltage (Vcc)
Earth terminal (GND)
No function
No function
DC voltage (Vm)
- (03-98) -
5. Service parts information