Troubleshooting by Remote Controller
SiBE281013
152
Service Diagnosis
Troubleshooting
Refer to P.172.
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
When the compressor is running,
measure the voltage b and -
of electrolytic capacitor (C+, C-).
Remove the connector for fan motor
on the PCB, and operate.
NO
NO
YES
YES
YES
YES
YES
NO
Field factors
NO
Replace the fan motor.
NO
NO
YES
Replace the fan motor.
Correct the wiring.
Replace the outdoor unit PCB.
CHECK 6
Is the power
supply voltage between
200±10% VAC?
"
U2
" is displayed?
Is the resistance valve is
above the criteria?
Is the wiring correct?
Is the
measured voltage
220 VDC or more?
Is the fan
motor normal?
(Refer to troubleshooting
"
E7
" )
Monitor the voltage
(Instantaneous voltage drop)
CHECK 6
