SERVICE PARTS INFORMATION 14-1
Indoor Unit Fan Motor <DC 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 Indoor Fan Motor
Refer to below. Circuit-test "Vm" and "GND" terminal.
(Vm: DC voltage, GND: Earth terminal)
>>If they are short-circuited (below 300 k ), replace Indoor fan motor and Controller PCB.
Pin number
(wire color)
Terminal function
(symbol)
1 (Brown or Blue)
2 (Yellow)
3 (White)
4 (Black)
5
6 (Red)
Feed back (FG)
Speed command (Vsp)
Control voltage (Vcc)
Earth terminal (GND)
No function
DC voltage (Vm)
When you approach this part, please cut off the power supply and wait for a while until DC voltage has been discharged.
04-127
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