SiBE12-933_A
Troubleshooting
Service Diagnosis
189
Troubleshooting
Check No.07
Refer to P.216
Check No.08
Refer to P.217
Check No.14
Refer to P.219
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
∗
An input overcurrent 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 input overcurrent,
check the wires again.
(R11709)
NO
YES
YES
NO
Start operation and measure the
input current.
Check No. 08
Check the discharge pressure.
Check No. 07
Check the installation condition.
Check No. 14
Check with the inverter checker (
∗
).
Turn off the power and disconnect
the harnesses U, V, and W.
Turn off the power, and reconnect
the harnesses. Turn on the power
again and start operation.
Replace the outdoor unit
PCB.
Correct the power supply or
replace the PM1.
(Replace the outdoor unit
PCB.)
Any LED off?
Input current flowing
above its stop level?
∗
Inverter checker
Part No.: 1225477