Troubleshooting for Outdoor Unit
SiBE12-816_D
259
Service Diagnosis
Check No.11
Refer to P.262
NO
(R14420)
YES
NO
YES
YES
NO
NO
YES
Check wrong wiring, insulation
among wiring, insulation to ground
YES
NO
(
)
From the
previous page
Turn off the power supply.
Disconnect No. 3 terminal and
turn on the power supply again.
Check the connection wires
between indoor unit and outdoor
unit.
Does the LED A turn off?
Grounded?
Disturbance?
Is it OK?
Carry out grounding work.
Replace the outdoor unit
PCB.
Reconnect the connection
wires.
Replace the indoor unit
PCB.
The cause seems to be an
external factor other than
failure of the outdoor unit
PCB.
Investigate the source of
noise and take measures.
Investigate the cause of
disturbance and take
remedial action.
Check the grounding.
Check No. 11
Check the power supply
waveform.
Does the LED A
flashing more than 10
times?