Daikin R71FUV1 Service Manual page 286

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