Daikin RTSQ20PY1 Service Manual page 242

Troubleshooting by Indication on the Remote Controller
Troubleshooting
231
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
NO
Is power supply
220~240V provided?
YES
NO
Indoor unit is a model
equipped with a swing
flap function
YES
YES
The swing motor works
when the power supply
is turned off and then
back on.
NO
After turning the swing-
flap ON and then
stopping with the remote
NO
controller, the voltage of
X6A of the indoor unit
PCB is 220 VAC when
turned on again (within 30
seconds of turning on
again).
YES
YES
The connecting cable
has no continuity.
NO
When the airflow
direction flap-cam
mechanism is
NO
disconnected from the
swing motor, operation
is normal when turned
on again.
YES
The connector is
NO
connected to X9A
of the indoor unit
PCB.
YES
NO
The limit switch
functions normally.
YES
The connecting cable
YES
is short-circuited or
disconnected.
NO
SiBE31-801_C
Provide 220~240V power
supply.
Replace the indoor unit PCB.
Connect the connector to X9A
and turn on again.
Replace the swing motor.
Replace the limit switch
connecting cable.
Replace the indoor unit PCB.
Replace the power supply
connecting cable.
Replace the swing motor.
Take the cam mechanism
apart, reassemble and turn on
again.
Troubleshooting