Daikin E-Series Service Manual page 401

Troubleshooting for Outdoor Unit
Troubleshooting
Check No.03
Refer to P.404
388
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the power
supply voltage
200~240V ±10%?
YES
Is the P-N
resistance not less
than several hundred
of ohms?
YES
Check No.03
Is the resistance above
standard value?
YES
When the compressor is
running, measure the voltage
between + and - of
electrolytic capacitor (C+, C-).
Is the
measured voltage 220
VDC or more?
NO
NO
NO
NO
YES
SiAU18-715
Correct power supply
Field factors
Replace the fan motor
Monitor the voltage
(Instantaneous voltage
drop)
Replace the inverter PC
board (A1P).
(Q0576)
Troubleshooting