Daikin R71FUV1 Service Manual page 292

Troubleshooting by Remote Controller
Troubleshooting
Caution
Check the installation
conditions.
Is
the stop valve
open?
The
compressor is
grounded and short
circuited.
CHECK 4
Continuity check
in the power transistor
(IGBT). Is the
continuity
normal?
Turn the power ON, and
then operate the test
operation.
Error is
displayed again?
Check the power supply
voltage.
A
CHECK 4
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
YES
NO
NO
YES
NO
YES
the operation
Refer to P.464.
Continue
normally.
YES
Si20-701_B
Open the stop
valve.
Replace the
compressor.
Replace the
outdoor unit
PCB.
NO
Go to the other
troubleshooting.
Normal
operation.
285