SiBE041025
Check
Service Diagnosis
89
5.1.6 Power Supply Waveforms Check
Check No.10
Measure the power supply waveform between No. 1 and No. 2 on the terminal board, and check
the 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)
5.1.7 Inverter Units Refrigerant System Check
Check No.11
Fig.1
Fig.2
(R1736)
(R1444)
Refrigerant system check
Check for refrigerant leaks.
See the service diagnosis on
refrigerant shortage (
U0
).
(R8259)
YES
NO
Place the thermistor.
Replace the refrigerant.
Is
the discharge
thermistor disconnected
from the holder?
