Chapter 6 Maintenance — [SELF TEST] indications
248 - ENGLISH
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 dierent.
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 suciently 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 o 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 o and on, consult your
dealer.
7
Perform maintenance or replacement of the lter. (x page 241)
8
The projection lens cannot be detected. Turn o the power and attach the projection lens again. If the display does not clear
after switching the power o and on, consult your dealer.
*1 For details of operating environment temperature of the projector, refer to “Operating temperature” (x page 266).
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