Daikin SkyAir Super Inverter 70 D Series Service Manual page 181

Troubleshooting by Remote Controller Display / LED Display
Troubleshooting
*1: Applicable models are RZP71D.
*2: Applicable models are RZP71D.
172
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Is
the fan motor connector
connected?
YES
Are
connectors
connecting the control
NO
and inverter PC board
connected securely?
(*1)
YES
Is the
transmission wiring
YES
between the control and
inverter PC board
disconnected?
(*2)
NO
Disconnect
the fan motor connector,
and turn on again.
Is "E7"
displayed on the
YES
remote controller?
("LC" is not
displayed?)
NO
Is the
microcomputer normal
NO
monitor (green) on inverter
PC board blinking?
YES
Is the
microcomputer
NO
normal LED on control
PC board blinking?
YES
NO
SiE25-110
Connect the connector, and
turn on again.
Connect the transmission
wiring, and turn on again.
Fix the disconnection, and
turn on again.
Replace the fan motor.
Inverter transmission
malfunctioned due to the
malfunction of fan motor.
Replace the inverter PC
board.
Replace the control PC
board.
Check for faulty connector
connection in the transmission wiring
and for clamps with high tension line.
Troubleshooting
(S2595)