Daikin CTXU25G2V1B Service Manual page 133

Troubleshooting
Troubleshooting
Check No.03
Refer to P.163
Check No.11
Refer to P.164
Check No.14
Refer to P.166
Check No.16
Refer to P.168
130
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
*Input over current may be caused by improper wiring inside the machine. If the
machine stops due to input over current after connecting or disconnecting
wires to replace part, check wiring for proper connection.
Get restarted and measure the
input current
Is the current value
more than the set
stop input current
value?
YES
Check No. 11
Main circuit electrolytic
capacitor check
Is it OK?
YES
Turn off the power supply, and
disconnect U, V, and W harnesses
Check No.14
Check the inverter by the
inverter checker*
Is there any LED
turned off?
NO
Turn off the power supply, replace
the harnesses, and restart the
compressor after turning on the
power supply again.
Check No. 16
Discharge pressure check
Check No. 03
Installation condition check
NO
NO
YES
SiBE12-908
Replace the outdoor unit
PCB.
Replace electrolytic
capacitor.
*Inverter checker
Part No.: 1225477
Rectify the power supply or
replace the outdoor unit
PCB.
(R9441)
Service Diagnosis