Daikin CTXU25G2V1B Service Manual page 140

SiBE12-908
Troubleshooting
Check No.16
Refer to P.168
Check No.29
Refer to P.171
Check No.14
Refer to P.166
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the power supply
Check No. 16
Discharge pressure check
Judge
YES
Check No. 29
Short circuit check
Is it OK?
YES
Check the voltage of electrolytic
capacitor
DC270±30V?
YES
Is the harness of
electric component or
compressor connected
properly?
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
NO
NO
NO
NO
YES
Troubleshooting
Replace stop valve.
Replace
·Outdoor unit PCB
·Outdoor fan
·Humidification fan
·Four way valve coil
Replace the outdoor unit
PCB.
Connect properly.
*Inverter checker
Part No.: 1225477
Rectify the power supply or
replace the outdoor unit
PCB.
Replace the compressor.
(R9445)
137