Sanyo plc-xu4001 Owner's Manual page 70

Check the indicators for projector condition.
POWER
WARNING
red
green
When the projection lamp reaches its end of life, the LAMP REPLACE indicator lights yellow.
When this indicator lights yellow, replace the projection lamp with a new one promptly. (p. 65)
70
LAMP
REPLACE
The projector is off. (The AC power cord is unplugged.)
The projector is in stand-by mode. Press the ON/STAND-BY
button to turn on the projector.
The projector is operating normally.
The projector is preparing for stand-by or the projection lamp
is being cooled down. The projector cannot be turned on
until cooling is completed and the POWER indicator stops
blinking.
The projector is in the Power management mode.
The temperature inside the projector is abnormally high. The
projector cannot be turned on. When the projector is cooled
down enough and the temperature returns to normal, the
POWER indicator stops blinking and the projector can be
turned on. (The WARNING indicator keeps blinking.)
The projector has been cooled down enough and the
temperature returns to normal. When turning on the
projector, the WARNING indicator stops blinking.
The projector detects an abnormal condition and cannot
be turned on. Unplug the AC power cord and plug it again
to turn on the projector. If the projector is turned off again,
unplug the AC power cord and contact the dealer or the
service center for service and checkup. Do not leave the
projector on. It may cause an electric shock or a fire hazard.
Projector Condition