EdgeStar AP410HS User Manual
Page 21

The air intake or exhaust ports 
are partially obstructed. 
Remove the obstruction.
The condenser coils are dirty
Vacuum the air inlet located 
on the side of the unit 
The unit has a minor electrical 
fault 
Move the unit to another 
circuit or unplug the unit and 
plug it in again. 
The control panel lights
are blinking randomly
The unit is plugged into an 
outlet that cannot supply the 
correct electricity to the unit 
Move the unit to another 
circuit or unplug the unit and 
plug it in again. 
The unit is draining into the 
drain pan 
The drain pan has no auto 
shut-off- do not leave the unit 
unattended while draining into 
an external drain pan- the 
level of water in this drain pan 
must be manually monitored 
The drain stopple and plug are 
not installed 
Install the stopple and drain 
plug 
The unit is leaking
The unit is not on a level 
surface 
Make sure the unit is on a 
level surface 
The heater light is
blinking and the heater
will not turn on
The unit is still set in air 
conditioner mode 
Unplug the unit, wait 30 
seconds, and plug the unit 
back in. Then select the heater 
function 
The heater light is
blinking, but the heater is
working
The unit is warming up before 
starting full heat mode 
Allow the unit to run at least 2 
minutes and the light will stop 
blinking 
The air conditioner is too 
loud. 
The unit is positioned on a 
hard, uneven floor, and is 
vibrating. 
Move the unit onto a level, 
carpeted surface. 
The Run LED is blinking 
and the air conditioner is 
beeping. 
The internal water reservoir is 
full. 
Drain the water reservoir.
The LED display seems to 
show that the air 
conditioner is on, but it is 
not working. 
The "Timer on" feature is 
activated. 
Turn the unit on with the 
power button to deactivate the 
"Timer on" feature. 
"E1" shows in the LED 
display. 
The evaporator sensor has 
detected a problem. 
Contact customer service.
"E2" shows in the LED 
display. 
The room temperature sensor 
has detected a fault. 
Contact customer service.
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