Daikin Super multi NX E Series Service Manual page 230

Troubleshooting for Outdoor Unit
Troubleshooting
Check No.15
Refer to P.236
Check No.18
Refer to P.238
219
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn off the power.
Check the power supply voltage.
Voltage as rated?
YES
Check No. 18
Check the discharge pressure.
OK?
YES
Check the connection.
Electrical
components or
compressor harnesses
connected as
specified?
YES
Turn on the power.
Check the electrolytic capacitor
voltage.
320 ± 50 VDC?
YES
Turn off the power. Disconnect the
harnesses U, V, and W.
Check No. 15
Check with the inverter analyzer.
Any LED OFF?
NO
NO
NO
NO
NO
∗ Inverter analyzer
RSUK0917C
YES
SiBE121135_A
Correct the power supply.
Replace the stop valve.
Reconnect the electrical
components or compressor
harnesses as specified.
Replace the outdoor unit
PCB.
Correct the power supply or
replace the outdoor unit
PCB.
Replace the compressor.
(R18343)
Service Diagnosis