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The unit can not operate. • Has the power been shut down?
• Is the power plug loosed?
• Is voltage too high or too low?
(tested by professional)
•Has the TIMER ON function been well
operated?
Cooling(Heating) efficiency is not good. •Is temperature setting suitable?
•Does inlet or outlet vents obstructed?
•Is filter dirty?
•Are the windows and doors closed?
•Did fan speed set at low speed?
•Is there any heat sources in the room?
Remote control is not available. •The unit is interfered by abnormal
interference or changing function too
frequently, wireless remote control can not
control occationally. Plug out power plug
and re-insert well could resume normal
operation.
•Is the control in the receiving area? Or is
there obstruction.
•Check if the voltage batteries in the control
is enough, if not, change batteries.
If water leakage in indoor unit. • The air humidity is on the high side.
• Condensing water over flowed.
• The indoor unit drainage pipe connection
loosed.
If water leakage in outdoor unit. • When the unit is running in COOL mode,
the connection of pipe and pipe joint will
be condensed due to the water cooled
down.
Noise from indoor unit emitted. • Fan or compressor relay switching
(On/OFF) sound.
Breaking off
6. TROUBLESHOOTING
Operation and Maintenance
Indoor unit can't deliver air.
Moisture on air outlet vent. • If unit is running under the high humidity for
a long time, the moisture will be condensed
on the air outlet grill and drip off.
• In DRY “ ” mode, indoor fan sometimes
will stop, in order to avoid condensing
water be vaporized again, restrain
temperature raising