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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.
• When it is in "HEAT" or "Defrotsting", the
ice thawed and flowed out.
• When it is in HEAT, the water adhered on
heat exchanger dripped off.
Noise from indoor unit emitted.
• Fan or compressor relay switching
(On/OFF) sound.
• When it is defrosting or stop running, will
sound. That is due to the refrigerant flowing
direction is opposite.
Breaking off
6. TROUBLESHOOTING
Operation and Maintenance