Daikin LRYEQ16AY1 Service Manual page 230

Troubleshooting
Troubleshooting
Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
YES
Individual system
While in monitor mode, check whether
the system is right-hand (control PCB
1) or left-hand (control PCB 3).
229
Is the individual
system applied to the
outdoor unit?
While in monitor mode, check the
outdoor unit concerned.
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.
(The unit is out of
power supply for more
than 6 hours.)
NO
Check if the insulation
resistance of the compressor
is more than 100kΩ.
YES
Check if the
compressor lead wires
are disconnected.
NO
NO
Multi system
NO
NO
NO
YES
NO
YES
SiBE811001EB
Go on to the next page.
(Starting failure due to aged
operation.)
Charge a right amount of
refrigerant.
Open the stop valve.
Cancel the melting state of
refrigerant.
Cancel the melting state of
refrigerant.
Fix the compressor lead wire.
Correct the wiring then supply
the power to restart.
CONVENI-PACK