Daikin R71FUV1 Service Manual page 146

Troubleshooting by Remote Controller
Troubleshooting
Caution
Are the
connectors
connected to the
outdoor unit
PCB?
YES
Is the
contact of Q1L
open?
NO
Does
the unit
operate normally
when remote
controller is
used?
NO
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
YES
Si20-701_B
Connect the
connector, and
operate the unit.
Q1L fan
protection device
activation
Defective fan
motor, defective
capacitor, etc.
Momentary
power failure or
protection device
activated
previously.
Check refrigerant
system.
Replace the
outdoor unit
PCB.
139