Troubleshooting for Outdoor Unit SiEN18-622
390 Troubleshooting
Troubleshooting
Check No.03
Refer to P.406
Correct power supply
Field factors
Is the
power supply voltage
200~240V ±10%?
Is the
P-N resistance not less than
several hundred of
ohms?
NO
NO
YES
YES
YES
Replace the inverter PC board
(A1P).
Monitor the voltage
(Instantaneous voltage drop)
YES
NO
When the compressor is running,
measure the voltage between
+ and - of electrolytic capacitor
(C+, C-).
Check No.03
Is the resistance
above standard
value?
Is the measured voltage
220 VDC or more?
(S2605)
Replace the fan motor
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
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