Daikin R42NUY2S - Page 286

Troubleshooting by Remote Controller Si20-701_B
279
Troubleshooting
Note:
∗1. Guideline values
Model Instantaneous overcurrent detection value
RZ(Y)71~125L 65A
NO
NO
YES
YES
NG
NO
Do
LEDs on
outdoor unit PCB
indicate DC output
overcurrent?
Is
the unit
inoperable
using remote
controller?
The
error is displayed
again.
Inspect indoor
unit PCB and
remote controller.
Inspect
compressor for
short circuit and
ground fault.
Disconnect compressor
inverter.
Disconnect compressor
inverter.
OK
Check
compressor
for short circuit and
ground fault.
Defective
inverter.
Defective inverter
and compressor.
YES
(∗1)
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
A