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Troubleshooting by Indication on the Remote Controller
Troubleshooting
160
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Turn OFF the power supply,
and then wait for a period of 10
minutes.
Are there
any foreign matters around
the fan?
NO
Any of
the fan motor
connectors X1A or the
relay harness connectors
Z5C and X1A is
disconnected.
NO
Different
power supply
cable connector and
signal cable connector
have been connected to the
relay harness. (Power supply
and signal cable connectors
of different colors are
connected for one
and the same
motor.)
NO
Connectors
of harness between
the compressor inverter
PC board and the fan
inverter PC board
(A4P) are
disconnected.
NO
The fuse
(white tubular fuse)
on the fan inverter PC board has
a broken wire (has no
continuity).
NO
With
the connector
disconnected from the
fan motor, the fan
cannot be rotated
by hand.
NO
Resitance
between the fan motor
power supply cable terminal
and the motor frame
(metal part) is not
more than
1MΩ.
NO
A
YES
YES
YES
YES
YES
YES
YES
SiBE28-805
Remove the foreign matters.
Insert the connector
disconnected.
Use connectors of the same
color in combination for the
power supply and signal
cables for the relay harness
(e.g. natural color to natural
color, or red to red).
Insert the connectors in the
harness.
Replace the fan inverter PC
board.
Replace the outdoor unit fan
motor.
Replace the outdoor unit fan
motor.
Troubleshooting

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Troubleshooting

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