Swing Flap Does Not Operate - Daikin SkyAir Super Inverter 70 D Series Service Manual

Troubleshooting Based on Equipment Condition

3.12 Swing Flap does not Operate

Applicable
FHYCP, FUYP, FHYP, FAYP
Models
Method of Utilizes ON/OFF of the limit switch when the motor turns.
Malfunction
Detection
Malfunction
When ON/OFF of the micro switch for positioning cannot be reversed even through the swing
Decision flap motor for a specified amount of time (about 30 seconds).
Conditions
Possible Causes
Troubleshooting
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.
Turn the power supply off once
and back on, and measure the
output voltage of connector
X29A when the power supply is
turned back on.
120
Faulty swing motor
Faulty micro switch
Faulty connector connection
Faulty indoor unit PC board
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Are
the connectors
NO
correctly connected to
X29A and X14A on
the PC board?
YES
Is
the limit
NO
switch's transfer
connector correctly
connected?
YES
YES
Does the flap swing?
NO
NO
220 - 240 VAC?
YES
Disconnect X14A, turn the
power supply off once and back
on, and check if the limit switch
has continuity when the power
supply it turned back on.
Is continuity/no
continuity reversed?
NO
Connect correctly.
Connect correctly.
YES
Replace the indoor unit PC board.
Replace the swing motor assembly.
Troubleshooting
SiE25-110
(S2577)