Daikin RTSQ20PY1 Service Manual page 294

Troubleshooting by Indication on the Remote Controller
Troubleshooting
283
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
While in monitor mode, check
the unit concerned.
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.
Refrigerant is sleeping. ( The
unit is out of power supply for
more than 6 hours.)
Check if the insulation
resistance of the compressor
is more than 100kΩ.
Check if the
compressor lead wires
are disconnected.
NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
YES
NO
SiBE31-801_C
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.
Troubleshooting