Troubleshooting - Daikin R71FUV1 Service Manual

Si20-701_B

Troubleshooting

Caution
Is the
power switch
OFF or fuse for power
switch blown?
NO
Is there
power failure?
NO
Is the
operation
switch pressed
repeatedly?
NO
Is the
thermostat
changed and reset
again?
NO
Is the
operation
lamp on LCD remote
controller
blinking?
NO
Is the
operation
lamp on indoor unit
signal receiving part
blinking?
NO
Defective electric
component
32
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
YES
YES
YES
YES
YES
YES
Symptom-based Troubleshooting
Turn ON the
power switch or
replace the fuse.
If high-harmonics
circuit breaker is
not used on the
inverter
compressor,
replace the circuit
breaker.
Wait until power
returns.
Normal. Start up
operation after 3
minutes (3-min.
standby).
Normal. Start up
operation after 3
minutes (3-min.
standby).
Diagnose based
on error code on
remote controller.
Diagnose based
on error code on
remote controller.
Check the
electric system.