Daikin R71FUV1 Service Manual page 179

Si20-701_B
Troubleshooting
Caution
Check the installation
conditions.
Is
the stop valve
opened?
Is the
connector for
the low pressure
switch properly
connected to the
outdoor unit
PCB?
Turn OFF the power
supply. Wait for a few
minutes after compressor
stops operating, then
check the following.
Is there
a continuity in
the low pressure
switch?
CHECK 5
Is low pressure
abnormally
low?
CHECK 5
172
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
NO
YES
NO
YES
YES
NO
Refer to P.466.
Troubleshooting by Remote Controller
Open the stop
valve.
Connect
correctly.
Replace the low
pressure switch.
Rectify the
cause.
Replace the
outdoor unit
PCB.