Daikin RZQ Series FCQ20EVA Service Manual page 106

Troubleshooting by Remote Controller
Troubleshooting
Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
Is the connector (∗1)
correctly connected?
YES
Is the limit
switch's transfer connector
correctly connected?
YES
Turn the power supply OFF once and
restart, and check whether the swing
flap motor swings when the power
supply is restarted.
Does the swing flap
motor swing?
NO
Turn the power supply OFF once and
restart, and measure the output
voltage of connector (∗3) when the
power supply is restarted.
220-240 VAC?
YES
Note:
Connector and indoor unit PCB
Model
FCQ
97
NO
NO
Disconnect the connector (∗2), turn
the power supply OFF once and
YES
restart, and check if the limit switch
has continuity when the power supply
is restarted.
continuity/no continuity
NO
Connector for swing flap motor
1 2
X36A X36A
Does
YES
reverse?
NO
3
X36A
SiME281501E
Connect correctly.
Connect correctly.
Replace the indoor unit PCB.
Replace the indoor unit PCB.
Replace the swing flap motor.
PCB
A1P
Service Diagnosis