Daikin Super multi NX E Series User Manual

Troubleshooting for Outdoor Unit SiBE121135_A
221 Service Diagnosis
Troubleshooting
Check No.15
Refer to P.236
Check No.21
Refer to P.239
(R18335)
Caution
YES
2 sec
Time
NO
NO
YES
YES
NO
YES
NO
YES
NO
Current
(guideline)
Turn off the power and turn it on
again.
Start operation.
Check No. 21
Check the capacitor voltage.
Measure the rectifier input voltage.
Turn off the power. Disconnect the
harnesses U, V, and W.
Turn off the power and reconnect
the harnesses. Then turn on the
power again and restart operation.
Check No.15
Check with the inverter analyzer.
∗ Inverter analyzer:
RSUK0917C
Voltage
within the allowable
range (Power supply
voltage ± 15%)?
Replace the outdoor unit
PCB.
Replace the outdoor unit
PCB.
Replace the outdoor unit
PCB.
Check the power supply
voltage.
Replace the compressor.
Capacitor charged when
the indoor unit or outdoor
unit main relay turns on
Rising with increasing
frequency
Correct the power supply or
replace the outdoor unit PCB.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
∗ Running current
as shown at right
with relay cable 1
or 2?
320 ± 50 VDC?
Any LED OFF?
Compressor running?

Daikin Super multi NX E Series Specifications

General

Brand	Daikin
Model	Super multi NX E Series
Category	Air Conditioner
Language	English