Turn ON the power switch or
replace the fuse.
If high-harmonics circuit breaker
is not used on the inverter
compressor, replace the circuit
breaker.
YES
NO
Wait until power returns.
Is there power failure?
YES
NO
Normal. Equipment starts
operation 3 minutes later (3-min.
standby).
YES
NO
Normal. Equipment starts
operation 3 minutes later (3-min.
standby).
YES
NO
Diagnose based on error code
on remote controller.
YES
NO
Diagnose based on error code
on remote controller.
YES
NO
Check the electric system.
Defective electric component
Is the power
switch OFF or fuse for power
switch blown?
Is the operation switch
pressed repeatedly?
Is the thermostat changed
and reset again?
Is the operation
lamp on LCD remote controller
blinking?
Is the operation lamp
on indoor unit signal receiving
part blinking?
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
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