121
Troubleshooting
Regarding the indicator lamps (continued)
POWER 
indicator
LAMP 
indicator
TEMP 
indicator
Description
Blinking
In Red
or
Lighting
In Red
Turned
off
Blinking
In Red
The cooling fan is not operating.
Please turn the power off, and allow the projector to 
cool down at least 20 minutes. After the projector has 
sufciently cooled down, please make conrmation 
that no foreign matter has become caught in the fan, 
etc., and then turn the power on again.
If the same indication is displayed after the remedy, 
please contact your dealer or service company.
Blinking
In Red
or
Lighting
In Red
Turned
off
Lighting
In Red
There is a possibility that the interior portion 
has become heated.
Please turn the power off, and allow the projector to 
cool down at least 20 minutes. After the projector has 
sufciently cooled down, please make conrmation of 
the following items, and then turn the power on again.
• Is there blockage of the air passage aperture?
• Is the air lter dirty?
•  Please use the unit within the usage temperature 
parameters (0°C to 35°C, 40°C or 45°C (
User's 
Manual (concise))).
• Is the setting for ALTITUDE appropriate? 
•  Is the exhaust air (hot/cold) from peripheral  
equipments blowing against the ventilation opening 
of projector?
For details on ALTITUDE, refer to ALTITUDE 
of SERVICE in the OPTION menu (
72). If the 
projector is used with a wrong setting, it may cause 
damage to the projector itself or the parts inside.
(continued on next page)