Daikin VRV III REYQ8PY1 Service Manual page 304

Si37-701
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
YES
single system applied
to the outdoor
Single system
While in monitor mode, check
whether the system is right-
hand (control PC board 1) or
left-hand (control PC board 3).
Check if it
is the first time to start
after installation.
Check if a
right amount of refrigerant
is charged.
Check if the
stop valve is open.
is sleeping. ( The unit is out
of power supply for more than
Check if the
insulation resistance of the
compressor is more
than 100kΩ.
Check if the
compressor lead wires are
disconnected.
Troubleshooting by Indication on the Remote Controller
Is the
NO
unit?
Multi system
While in monitor mode,
check the outdoor unit
concerned.
NO
YES
NO
YES
NO
YES
Refrigerant
YES
6 hours.)
NO
NO
YES
YES
NO
Go on to the next page.
( Starting failure due to aged operation.)
Charge a right amount of
refrigerant.
Open the stop valve.
Cancel the sleeping state of
refrigerant.
Cancel the sleeping state of
refrigerant.
Fix the compressor lead wire.
Correct the wiring then supply
power to restart.
293