Chapter 6
Maintenance — [SELF TEST] indications
248 - ENGLISH
Error/warning display
Details
Action number
U290
Filter clogging warning
7
U291
Exhaust filter not installed
7
U300
Intake temperature error
1
U301
Exhaust air temperature error
2
U303
Light source temperature 1 error
1
U304
Light source temperature 2 error
1
U353
Power supply temperature error
1
U390
Filter clogging error
7
Note
f
The self-diagnosis display and the details of the malfunction may be different.
f
For errors and warnings that are not described in the table, consult your dealer.
r
Measure for error and warning
Action
number
Measure
1
The operating environment temperature is either too high or too low. Use the projector in an appropriate operating
environment temperature
*1
.
2
The operating environment temperature is too high, or the exhaust vent may be blocked. Use the projector in an appropriate
operating environment temperature
*1
. Or remove any objects that are blocking the exhaust vent.
3
The input supply voltage is low. Use electric wiring that can sufficiently withstand the power consumption of the projector.
4
Battery replacement is required. Consult your dealer.
5
If the display does not clear after switching the main power off and on, consult your dealer.
6
The light source has failed to turn on. If the light source does not light up after turning the power off and on, consult your
dealer.
7
Perform maintenance or replacement of the filter. (
x
page 241)
8
The projection lens cannot be detected. Turn off the power and attach the projection lens again. If the display does not clear
after switching the power off and on, consult your dealer.
*1 For details of operating environment temperature of the projector, refer to “Operating temperature” (
x
page 266).
