Troubleshooting by Indication on the Remote Controller
110
Troubleshooting
The
compressor coil
has disconnection
of wires.
The
insulation
resistance of the
compressor is low
(not more than
100k
Ω
).
Is the
wiring the same
as in the wiring
diagram.
Is the
connection of
UVW phase order
correct?
Are the
relay wires to the
compressor
correct?
Is the stop
valve open?
NO
YES
YES
Local factor
Open the stop
valve.
NO
Replace the
connecting wires
and then
securely connect
the connectors.
NO
YES
YES
NO
Ensure correct
connection.
NO
Ensure correct
connection.
YES
Replace the
compressor.
YES
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
A
Power OFF
U
V
W
Restart the
compressor, and
then check whether or
not the error
recurs.
NO
YES
Conclude the
work
There is a
possibility of
defective
pressure
equalizing.
Check the
refrigerant
system.
NO
Power ON
