Troubleshooting SiBE041134EB
74 Service Diagnosis
Troubleshooting RXS20/25L3V1B, ARXS25L3V1B
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Continuously ON or OFF
Blink
Check the voltage of the
connection wires on the indoor
terminal board between No. 1
and No. 2.
NO
YES
Replace the connection wires
between the indoor unit and
outdoor unit.
Normal?
YES
(R22771)
NO
Replace the outdoor unit
PCB (main PCB).
Ground the system.
Zero-cross signal
abnormality.
Replace the outdoor unit
PCB (main PCB).
Check if the outdoor unit is
grounded.
Is LED A blinking?
Grounded?
Turn on the power again.
∗ Before you check the LED A,
cancel the standby electricity
saving function by starting fan
operation with the remote
controller.
∗ Wait at least for 7 sec. after
turning on the power.
To Next Page
Loading...
