Fujitsu AOU12RL2, ASU12RL2, AOU09RL2 manual Indoor unit fan motor, Outdoor unit fan motor

Page 52

SERVICE PARTS INFORMATION 4

Indoor 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 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

Terminal function

(wire color)

(symbol)

 

 

 

1

(Blue)

Feed back (FG)

2

(Yellow)

Speed command (Vsp)

3

(White)

Control voltage (Vcc)

4

(Black)

Earth terminal (GND)

5

 

No function

6

(Red)

DC voltage (Vm)

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: Earth terminal)

>>If they are short-circuited (below 300 k ), 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 or Blue)

Feed back (FG)

02-29

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Page 51 Page 53
Contents Service Instruction Contents Appending Data Page Wall Mounted type Cooling Operation Heating Operation DRY OperationAuto Changeover Operation 01-03Indoor FAN Control Fan speedFAN Operation Cooling OperationMoisture Return Prevention Control Cooling mode& Dry mode Cool AIR Prevention Control Heating modeHeating Operation Outdoor FAN Control Outdoor Fan MotorAdjust the RIGHT-LEFT Louvers Louver ControlVertical Louver Control Function RangeLimitation of Compressor Frequency by Outdoor Temperature Compressor ControlOpeartion Frequency Range Opeartion Frequency Control AT Normal Start UPTimer Opeartion Control Program TimerCooling operation mode Sleep TimerHeating operation mode Prevent to Restart for 3 Minutes 3 Minutes ST FOUR-WAY Valve Extension SelectAuto Restart 24C 75FPowerful Operation Forced Cooling Operation Test OperationCompressor Preheating Economy OperationDefrost Operation Control Condition of Starting the Defrost OperationCondition of the Defrost Operation Completion Release ConditionNormal defrost Integrating defrost Defrost Flow Chart01-14 OFF Defrost Opeartion Control Defrost end 01-15Discharge GAS Temperature Overrise Prevension Control Various ProtectionsCurrent Release Control 01-16High Temperature Release Control Heating Mode Antifreezing Control Cooling and Dry modeCooling Pressure Overrise Protection Trouble Shooting Troubleshooting Error DisplayCheck Point 4 Check Serial Signal Reverse Transfer Signal Trouble Shooting with Error CodeOutdoor unit Main PCB Indoor unit Controller PCB Indoor unit Fan motor Indoor unit Controller PCB Check Point Check Indoor unit electric componentsCheck Point Check external cause such as noise Check Point 3 Replace Controller PCBIndoor unit Controller PCB Indicator PCB Manual auto switch Check Point 2 Replace Controller PCBIndoor unit Controller PCB Room temperature thermistor Indoor unit Controller PCB Heat Ex. temperature thermistor Check Point 2 Check ambient temp. around motor Check Point 3 Check Indoor unit fan motorCheck Point 2 Replace Main PCB Check Point 1-2 Check external causeCheck Point 2 Check connection of Connector Check Point 3 Replace Main PCB02-11 Outdoor unit Main PCB Discharge pipe temperature thermistor CN71 CN70Outdoor unit Main PCB Heat exchanger temperature thermistor Resistance Value k 606 759 213 8531Outdoor unit Main PCB Outdoor temperature thermistor Check Point 4 Replace Main PCB Check Point 2 Check Heat exchanger Outdoor unit Main PCB CompressorCheck Point 3 Check Compressor Check Point 3 Replace Main PCB Check Point 3 Check Outdoor unit fan motor Outdoor unit Main PCB Outdoor unit Fan motorCheck Point 4 Check Output Voltage of Main PCB Check Point 2 Check each thermistor Check Point 3 Check the solenoid coil and 4-way valveForecast of Cause Indoor Unit No Power Trouble Shooting with no Error CodeCheck Point 3 Check Electrical Components Outdoor Unit No Power 02-23 Check Point Check Indoor/ Outdoor installation condition No Cooling / No HeatingCheck Point 2 Check Outdoor unit operation Check Point 3 Check Site conditionAbnormal Noise Water LeakingCompressor Service Parts InformationReplace Compressor Inverter Compressor Blue Red Outdoor unit Electronic Expansion Valve EEVCheck Point 5 Check Opening and Closing Operation of Valve Indoor unit fan motor Outdoor unit fan motorPage Appending Data Function Setting Setting the Filter SignCooling Room Temperature Correction Heating Room Temperature CorrectionRemote controller signal code Setting the Auto RestartYes Procedures to change the Function Setting for wireless RC Selecting the Function Number and Setting Value Remote Controller Signal Code Setting Room temperature thermistor Discharge thermistorPage 1116,Suenaga,Takatsu-ku,Kawasaki 213-8502,Japan
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