Fujitsu ASYG07-14KGTF Service Manual page 317

¢ Models: ASYG07–14KMTB and ASYG07–14KMCC
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)
1 (Blue)
2 (Yellow)
3 (White)
4 (Black)
5
6 (Red)
5-4. Indoor unit fan motor
Terminal function
(symbol)
Feed back (FG)
Speed command (Vsp)
Control voltage (Vcc)
Ground terminal (GND)
No function
DC voltage (Vm)
- (03-97) -
5. Service parts information