Canon WUX500ST Quick Start Manual page 70

Troubleshooting
LED indicator
status
WARNING Filter error
(only) flashes 3
times
repeatedly.
Symptoms and Solutions
■ You Cannot Turn on the Projector
Cause
The power cord is not
connected correctly.
The power cord has just
been connected.
The lamp cover is open.
The safety device is
activated because the air
intake or the exhaust
vent is blocked and the
internal temperature of
the projector has
increased.
The air filter is not
installed correctly.
Key lock is enabled.
Meaning
The air filter is not installed. Check whether or not
the air filter is installed correctly. Contact the
Canon Customer Support Center if the same
warning occurs again.
Check whether the power cord is connected
correctly.
Wait at least one second after plugging the projector
in until you press the POWER button. You cannot
turn the projector on immediately after plugging it in.
(P40)
Unplug the projector from the power outlet, then
install the lamp cover correctly and turn on the
projector again.
When the safety device is active, the [POWER ON]
indicator does not turn on when you connect the
power cord. You cannot disable this safety device.
Remove any obstacle that is blocking the air intake or
exhaust vent and contact the Canon Customer
Support Center.
Check whether the air filter is installed correctly.
(P64)
Check that Key lock is not enabled for the projector
or the remote control.
70
Cause and countermeasure
Countermeasure