Daikin R71FUV1 Service Manual page 151

Si20-701_B
Troubleshooting
Caution
Are
HPS's for
control and safety
connected to the
outdoor unit
PCB? (∗1)
YES
Turn OFF the power
supply and check the
following after letting the
compressor rest for 2 or 3
minutes.
Do the
HPS's for
control and safety
have continuity?
YES
Is high
pressure during
operation abnormally
high?
NO
Note:
∗1. Some models are not equipped with an HPS for
control or safety.
144
Troubleshooting by Remote Controller
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
NO
YES
Connect correctly
Replace the HPS
without
continuity.
Correct
refrigerant piping
circuit.
Replace the
outdoor unit
PCB.