Daikin AT12BV1LS Pocket Manual page 120

Si10-417
Trouble
shooting
Check
No.7-1
Refer to
P.158
Check No.8
Refer to
P.160
Check No.13
Refer to
P.163
Service Diagnosis
Be sure to turn off power switch before connect or
Caution disconnect connector, or parts damage may be occurred.
∗ An output over-current may result from wrong internal wiring. If the
wires have been disconnected and reconnected for part
replacement, for example, and the system is interrupted by an
output over-current, take the following procedure.
Stop valve fully open?
YES
Turn off the power and turn it
on again to get the system
started. See if the same error
occurs.
Error again?
YES
Turn off the power and
disconnect the harnesses U, V
and W.
Check with the inverter
checker (∗).
Any LED off?
NO
2A
Troubleshooting
NO
Fully open the stop
valve.
NO
A
Keep on using as it is
(monitor).
Check the electricals'
connectors and other
fittings.
∗ Inverter checker
Part No.: 1225477
YES
Correct the power
supply or replace the
SPM.
(Replace the outdoor
unit PCB.)
119