SERVICE PARTS INFORMATION 22
Check Point 1 : Check rotation of Fan
Outdoor unit fan motor
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 " Winding coil resistance U, V, W." and the
Location sensor Circuit test
>>If they are other resistance value, replace Outdoor fan motor.
Pin number
(wire color)
Terminal function
(symbol)
U (Red ) - W (Black)
V (white) - U (Red)
W (Black) - V (White)
1 (Yellow) - 4 (Pink)
2 (Blue) - 4 (Pink)
3 (Orange) - 4 (Pink)
4 (Pink) - 5 (Gray)
1 or 2 or 3 - 5 (Gray)
2.8
9.3 K
More than 1.2 K
More than 10 K
SERVICE PARTS INFORMATION 21
Check Point 1 : Check rotation of Fan
Indoor unit fan motor < DC motor >
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
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.
When you approach this part, please cut off the power supply and wait for a while until DC voltage has been discharged.
W
V
U
4 Vcc
5
(GND)
1
2
3
Sensor -
circuit
04-115
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