Si01-406 CheckService Diagnosis 1155. Check5.1 Fan Motor Connector Output CheckCheck No.01 1. Check connector connection.2. Check motor power supply voltage output (pins 4-7).3. Check motor control voltage (pins 4-3).4. Check rotation command voltage output (pins 4-2).5. Check rotation pulse input (pins 4-1).5.2 Four Way Valve Performance CheckCheck No.57654321Motor power supply voltageUnusedUnusedP.0V (reference potential)Motor control voltage (15 VDC)Rotation command voltage (1~ 6 VDC)Rotation pulse inputS1(R3199)Turn off the power and turn it onagain.Start the heating-mode run.Replace the outdoor unitPCB.Replace the four way valvecoil.Replace the four way valve.(R3047)NO∗ Four way valve coilCooling / dry : ContinuityHeating : No continuityYESYESFour way valvecoil resistance at3kΩ±0.5kΩ?NOS80 voltageat DC 180-220 V withcompressor on?(Fig. 1)Disconnect the four way valve coilfrom the connector and check thecontinuity.(Fig. 1)Voltage at S80DC180-220VONCompressorTime
