SiBE04-809
Check
Service Diagnosis
121
5.1.8
Power Supply Waveforms Check
Check No.10
Measure the power supply waveform between pins 1 and 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)
5.1.9
Inverter Units Refrigerant System Check
Check No.11
[Fig.1]
[Fig.2]
Refrigerant system check
Check for gas leaks.
See the section on insufficient gas
detection.
(R8314)
YES
NO
Correct the problem.
Replace the refrigerant.
Is
the discharge
thermistor disconnected
from the holder?
Summary of Contents for ARXG25E3V1B
Page 1: ...SiBE04 809 Applied Models Inverter Pair Heat Pump Inverter Pair Wall Mounted Type E Series ...
Page 11: ...Introduction SiBE04 809 x ...
Page 12: ...SiBE04 809 List of Functions 1 Part 1 List of Functions 1 List of Functions 2 ...
Page 14: ...SiBE04 809 Specifications 3 Part 2 Specifications 1 Specifications 4 ...
