Daikin ZQG71~140L7V1B Service Manual page 140

Symptom-based Troubleshooting
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Are the connectors (∗)
correctly connected?
YES
Is the
limit switch's transfer
connector correctly
connected?
YES
Turn the power supply off once and
back on, and check whether the
swing flap motor swings when the
power supply is turned back on.
Does the flap swing?
NO
Turn the power supply off once and
back on, and measure the output
voltage of connector (∗) when the
power supply is turned back on.
220 - 240 VAC?
YES
Note:
*
Model
FCQG
FHQG
128
NO
NO
Disconnect X14A, turn the power
supply off once and back on, and
YES
check if the limit switch has continuity
when the power supply it turned back
on.
Is continuity/no
continuity reversed?
NO
NO
Connector for swing flap motor
X9A
X36A
Connect correctly.
Connect correctly.
YES
Replace the indoor unit PCB.
Replace the swing motor assembly.
PCB
A2P
A1P
ESIE12-06
Service Diagnosis