Chapter 6 Maintenance — [SELF TEST] indications
ENGLISH - 215
Error/warning display Details Action number
U290 Filter clogging warning 7
U291 Exhaust lter 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 too high. Use the projector in an appropriate operating environment temperature
*1
.
2 The operating environment temperature is too low. Use the projector in an appropriate operating environment temperature
*1
.
3 The input supply voltage is low. Use electric wiring that can sufciently 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 lter. (x page 208)
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 environment temperature” (x page 238).
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