Daikin R71FUV1 Service Manual page 237

Si20-701_B
Troubleshooting
Caution
Is
protection
high pressure
switch connector
correctly connected
to outdoor unit
PCB?
YES
Wait for 10 minutes after
the unit stops operating,
then check the following.
Is there
continuity in
each protection high
pressure switch?
YES
Is there
continuity in lead
wire?
YES
230
Troubleshooting by Remote Controller
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
NO
NO
Connect
correctly.
Replace the high
pressure switch
with no
continuity.
Resistance in
normal operation:
10Ω or less
Replace the lead
wire.
Replace the
outdoor unit
control PCB.