Multi Variable Heat Pump WALL Mounted Type Indoor Unit
16
9 Malfunction Analysis
WARNING
Do not repair the air conditioner by yourself. Faulty repair could lead to electric shock or fire. Please contact a
qualified technician to have the unit. Check the following items before contacting the service center, as it could
save you time and expense.
Malfunction Phenomena
Malfunction Analyzing
The air conditioner could not start up
just after turned off
The over load protection switch requires a 3 minute delay before unit will
run again
Unit emits an odor after just turning
on.
Odors or cigarette smoke which has been absorbed is discharged.
Slight clicking was heard when the
unit was running
This is the sound of the running refrigerant
Mist came from the air outlet vent
when cooling
Indoor air is cooled rapidly
Creaking sound was heard when the
unit was running or after it was
turned off
It is the normal sound of the panel and other parts expanding or
contracting due to temperature change.
The air conditioner failed to run
Is the power supply cut off?
Is the power supply connected?
Is the circuit breaker properly set?
Is the voltage too high or too low
Is the TIMER set on the wireless remote controller?
Poor cooling (heating) effect
Is the thermostat set properly?
Is the inlet, outlet vent of the outdoor unit blocked?
Is the air filter too dirty to cause blockage?
Are windows and doors closed? Is the air speed too low?
Is there other heat source in the room?
The wireless remote controller
won’t
work
In the event that the battery is replaced but the wireless remote control
still malfunctions, then open the back cover and press
”ACL” button to
reset it.
When the air conditioner functions are changed too frequently, the
wireless remote controller may malfunction. To resume the normal
operation de-energize and then re-energize the wireless controller.
Is the controller close enough to the air conditioner to receive the signal?
Is there an obstacle blocking the signal? Do the batteries need
replacing?
9.1 When to contact a service technician
When the following conditions occur, please stop operating immediately, cut off the main
power supply of the unit and then contact the service.
Harsh sound heard when running;
The fuse or circuit breaker trips frequently;
Substance or water pulled in the unit involuntarily;
