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Split system single phase type
2 4 5 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" ans "GND" terminal
(Vm : DC voltage, GND : Earth terminal)
If they are short circuited (below 300kΩ), replace Outdoor Fan motor and Main PCB
Pin number
Terminal function
(wire color)
(symbol)
1 (Red)
DC voltage (Vm)
2
No function
3
No function
4 (Black)
Earth terminal (GND)
5 (White)
Control voltage (Vcc)
6 (Yellow)
Speed command (Vsp)
7 (Brown)
Feed back (FG)
2 4 6
Service parts information 6 : Active filter module
(Only for WOYA080LFCA and WOYA100LFTA models)
(Only for WO*A080LFCA and WO*A100LFTA models)
Check point 1 : Check Open or Short-circuit and Diode (D1)
Remove connector, check the open or short-circuit and the diode in the module
If it is abnormal, replace ACTIVE FILTER MODULE
Check point 2 : Check the output DC voltage (between P and N)
Check the output DC voltage (between P and N) of compressor stopping and operating
If the output voltage of compressor operating is less than the output voltage of compressor stopping,
Active Filter Module is defective
- 36 -
Check the open or short-circuit
Terminal
Tester (+)
Tester (-)
(+IN)
(-IN)
P
L1
P
L1, L2
Control Box
L2
Check the diode
Terminal
Tester (+)
Tester (-)
L2
P
Ref value 1
Specifications for multimeter
Manufacturer : HIOKI
Model name : 3804
Power source : DC9V
→ Replace Active Filter Module
Resistance value
(-IN)
360kΩ ±20%
N
0Ω
(+IN)
720kΩ ±20%
1 40MΩ
/
L2
(Ref value 1)
N
360kΩ ±20%
∞Ω
1 69MΩ
/
N
(Ref value 1)
Resistance value
1 32MΩ
/
P
(Ref value 1)
1 40MΩ
/
L2
(Ref value 1)
Ref value 2
Specifications for multimeter
Manufacturer : YOKOGAWA
Model name : 7534
Power source : DC3V
Maintenance document "1792 - EN"
2 28MΩ
(Ref value 2)
1 88MΩ
(Ref value 2)
1 50MΩ
(Ref value 2)
1 51MΩ
(Ref value 2)
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