Daikin R71FUV1 Service Manual page 241

Si20-701_B
Troubleshooting
Caution
Is
LPS
connector
connected to outdoor
unit PCB?
Turn OFF the power
supply. After 10 minutes,
check the following.
CHECK 4
Is low pressure
abnormally
low?
Is there
continuity in
control and protection
LPS?
CHECK 4
234
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
NO
YES
NO
YES
Refer to P.464.
Troubleshooting by Remote Controller
Connect
correctly.
Correct the
refrigerant pipe.
Replace the LPS.
Replace the
outdoor unit
control PCB.