Daikin R42NUY2S - Page 379

Si20-701_B Troubleshooting by Remote Controller
372
NO
YES
Monitor the
voltage
(Instantaneous
voltage drop)
Replace the
outdoor unit
PCB.
Is the
measured voltage
220 VDC or
more?
A
When the compressor is
running, measure the
voltage between + and -
of electrolytic capacitor
(C+, C-).