Eiki EK-306U Owner's Manual page 34

Maintenance and cleaning
WARNING indicator
The WARNING indicator shows the state of the function which protects the projector. Check the
state of the WARNING indicator to take proper maintenance.
The projector is shut down and the WARNING
indicator is flashing red.
When the temperature inside the projector
exceeds the normal temperature, the projector
is automatically shut down to protect internal
components. The WARNING indicator is
blinking while the projector is being cooled
down. When the projector has cooled down
enough (to its normal operating temperature),
it can be turned on again by pressing the
POWER button.
 Note:
The WARNING indicator continues to
blink even after the temperature inside
the projector returns to normal. When the
projector is turned on again, the
WARNING indicator stops blinking.
Check the items below:
– Did you provide appropriate space for the
projector to be ventilated?
Check the installing condition to see if
ventilation slots are not blocked.
– Has the projector been installed near the
duct or vent of an airconditioning?
Move the installation of the projector away
from the duct or vent.
– Are the air filters clean? Clean the air filters
periodically.
The projector is shut down and the WARNING
indicator lights red.
When the projector detects an abnormal
condition, it is automatically shut down to
protect the internal components and the
WARNING indicator lights red. In this case,
unplug the AC power cord and plug it, and
then turn on the projector once again to verify
operation. If the projector cannot be turned on
and the WARNING indicator lights red, unplug
the AC power cord and contact the service
station for servicing and maintenance.
Caution
Do not leave the projector with the AC power cord connected under an abnormal condition.
It may result in fire or electric shock.
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WARNING indicator
WARNING indicator
flashes red.
WARNING indicator
WARNING indicator
lights red.
Maintenance and cleaning
Cleaning the filter
The air filter prevents dust from accumulating on the surface of the optical elements inside
the projector. Should the air filter become clogged with dust particles, it will reduce cooling
fans' effectiveness and may result in a buildup of internal heat and adversely affects the life of
the projector. If the Filter warning icon appears on the screen, the air filter should be cleaned
immediately. Clean the air filter following the steps below.
1 Turn off the projector, and unplug the AC
power cord from the AC outlet.
2 Remove the air filter.
3 Gently clean the filter with a brush.
4 Reinstall the filter into the projector properly.
Caution
Do not operate the projector with
the air filter removed. Dust may
accumulate on the optical elements,
degrading picture quality.
Do not put any small objects into the
air intake vents. Otherwise, it may
result in malfunction of the projector.
Filter counter reset
Be sure to reset the filter counter after cleaning
or replacing the filter.
1. Press Menu on the remote control to display
the screen menu. Press to select
"Expand", then press the OK button.
2. Press  to select "Filter counter", and then
press the OK button.
Press  to select "Filter counter reset" and
press the OK button, "Filter counter
Reset?" appears on screen, select "Yes" to
continue.
3. When another dialog box pops up, select
"Yes" to reset the filter.
Filter
Recommendation
We recommend avoiding dusty/smoky
environments when you operate the projector.
Usage in these environments may cause poor
image quality.
When you use the projector under dusty or
smoky conditions, dust may accumulate on the
lens, LCD panels, or optical elements inside the
projector. When the symptoms above are
noticed, contact the authorized dealer or
service station for proper cleaning.
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