8. Troubleshooting
Problem Analysis
If the air conditioner is out of work, read the following before contacting the maintenance
department and it will save you time and efforts.
Press “ON/OFF” switch on
the remote controller, no
“Hua-” sound is heard, and
the RUN indicator is not on.
After resumption of power,
press “ON/OFF” switch
Connect electric leakage switch
Remote controller is out of the
operation range
Operate the remote controller
within the operation range
Cells of remote controller are
out(LCD is dim)
Remote controller indicates
that the unit is running
The air inlet or outlet of the indoor or
outdoor unit is clogged
The air filter is clogged with dust or soil
The air
conditioner is
fanning, but not
sufficiently cool
or warm
Remote controller indicates
that the unit is running
Temperature is set too high in cooling
Temperature is set too low in heating
Check the temperature set on
the remote controller. Re-set
the appropriate temperature
Filter is clogged with dust
The air inlet or outlet of the indoor or
outdoor unit is clogged
Windows and doors are open
NOTE: If the unit stops running due to power failure, it will not restart when the power is resumed. To restart
again, press ON/OFF switch of the remote controller.
Failure Testing and Indication
In case of failure, the indicating light will indicate the failure state.
Self-examination information
Codes of self-examination of
luminescent tube
Display up starting (RUN lamp)
Failure of indoor temperature
sensor
Display in stop, protective lamp ON,
RUN lamp OFF.
Failure of pipe temperature
sensor
Display in stop, protective lamp ON,
RUN lamp OFF.
Display in stop, protective lamp ON,
RUN lamp OFF.
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