Daikin RQYQ140-180PY1 Service Manual page 156

Troubleshooting by Remote Controller
Troubleshooting
147
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check if it is the first
time to start after
installation.
YES
Check if a right
amount of refrigerant
is charged.
YES
Check if the stop
valve is open.
YES
Refrigerant
is melting in refrigerant
oil. ( The unit is out of
power supply for more
than 6 hours.)
NO
Check if the insulation
resistance of the compressor
is more than 100k Ω .
YES
Check if the
compressor lead
wires are
disconnected.
NO
NO
Go on to the next page.
( Starting failure due to aged operation.)
NO
Charge a right amount of
refrigerant.
NO
Open the stop valve.
YES
Cancel the melting state of
refrigerant.
NO
Cancel the melting state of
refrigerant.
YES
Fix the compressor lead wire.
Correct the wiring then supply the
power to restart.
SiBE341001
Troubleshooting