Fujitsu ASU7RLF1 Service Instructions Manual page 81

SERVICE PARTS INFORMATION 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.
(Vm: DC voltage, GND: Ground terminal)
>>If they are short-circuited (below 300 k ), replace Outdoor fan motor and Main PCB.
Terminal function
Pin number
(symbol)
(wire color)
1 (Red) DC voltage (Vm)
2 No function
3 (Black) Ground terminal (GND)
4 (White) Control voltage (Vcc)
5 (Yellow) Speed command (Vsp)
6 (Brown) Feed back (FG)
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