Daikin FTXS30LVJU Service Manual page 120

SiUS091133
Troubleshooting
Check No.11
Refer to P.144
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check the indoor unit - outdoor
unit connection wires.
Is there any wiring error?
NO
Check the voltage of the
connection wires on the indoor
terminal board between No. 1
and No. 3, and between No. 2
and No. 3.
Properly insulated?
NO
Check the LED A on the outdoor
unit PCB.
Is LED A blinking?
YES
Check No.11
Check the power supply
waveform.
Is there any disturbance?
YES
YES
YES
∗ Before you check the LED A,
cancel the standby electricity
saving function by starting fan
operation with the remote
controller.
∗ Wait at least for 7 sec. after
turning on the power.
NO
NO
Troubleshooting
Correct the indoor unit - outdoor
unit connection wires.
Replace the connection wires
between the indoor unit and
the outdoor unit.
Diagnose the outdoor unit
PCB.
Replace the indoor unit PCB.
Locate the cause of the
disturbance of the power supply
waveform, and correct it.
(R16914)
110