Troubleshooting - Costway EP24041 User Manual

XI.

Troubleshooting

Please check the unit and suggestions below before asking for professional service, but never dismantle or
repair the unit by yourself, it may cause harm to you and your property.
Trouble
The unit fails to start up
Bad cooling effects
High noise level
The compressor does
not work
The remote control
does not work
LED displays
code "E1"
LED displays
code "E2"
LED displays
code "E4"
Water-full indicator
lights
Cause
Power supply failure
Water-full and its indicator lighting up
Ambient temperature too low or too
high
The room temperature is lower than
the set temperature in cooling mode.
There is direct sunlight
The doors and windows are open, the
room is crowded or there are other
heat sources
Dirty filter
Air inlet or air outlet clogged
The unit is being placed at uneven
surface.
Initiation of overheat protection.
Too long distance
The remote control didn't aim at
signal receptor on unit.
The batteries have no electricity
error
Tube temperature sensor failure
error
Room temperature sensor failure
error
Anti-freeze protection
The water in chassis is full
Remedy
Connect the unit to a live socket and
turn it on.
Drain the water stored in the unit.
It is recommended to use this unit
between 10-35℃（50-95℉.）
Change the set temperature
Close the curtain
Close the door and window, remove
other heat sources, and add new
air-conditioners
Clean or replace the filter.
Remove the obstruction
Put the unit at a flat and firm place
(may reduce noise)
Wait until the temperature decrease,
the unit will re-start automatically
Bring the remote control close to the
air-conditioner and ensure airs at
signal receptor on unit.
Replace the batteries
Check the tube temperature sensor
and related circuits
Check the room temperature sensor
and related circuits
Restore the functions automatically
once anti-freeze protection is over.
Drain the water and re-start the unit
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