Check SiBE06-514A122 Service Diagnosis5.1.8 Outdoor Unit Fan System CheckCheck No.09 DC motor5.1.9 Power Supply Waveforms CheckCheck No.10 Measure the power supply waveform between pins 1 and 3 on the terminal board, and checkthe waveform disturbance. Check to see if the power supply waveform is a sine wave (Fig.1). Check to see if there is waveform disturbance near the zero cross (sections circled in Fig.2)5.1.10 Inverter Units Refrigerant System CheckCheck No.11Check the outdoor unit fan system.Reconnect.(R2857)Outdoor unit fan running?YESFan motor lead wireconnector disconnected?YESNONOOutdoor unit fan systemfunctioning. Go to Check No. 15.[Fig.1] [Fig.2]Refrigerant system checkCheck for gas leaks.See the section on insufficient gasdetection.Conduct the check after operating theequipment for a sufficient length of time.Correct the problem.Conduct vacuum drying.Replace the refrigerant.Isthe dischargethermister disconnected fromthe holder?(R1445)YESYESYESIs any moisturefound in sight glass.NONO
