3
Troubleshooting
Related messages (continued)
Message Description
A note of precaution when cleaning the air lter. 
Please immediately turn the power off, and clean or 
change the air lter referring to the Cleaning and 
replacing the air lter section of this manual. After you 
have cleaned or changed the air lter, please be sure to 
reset the lter timer (
User's Manual - Operating guide
).
The button operation is not available.
Check the button you are going to use (
User's Manual - 
Operating guide
). Even when a usable button is pressed, 
all button operations are not available under the following 
conditions.
-  While the lens is moving, button operation from the 
control panel or the remote control might be ignored.
-  Pressing the one of buttons to call a signal input might 
be ignored, when all the input ports belonging to the 
category the button's name shows are set to the "SKIP" 
by the item SOURCE SKIP of the OPTION menu.
The humidity around the projector exceeds the 
operating humidity range.
Please turn the power off.
-  Set up the projector in a location with a humidity of 0% 
to 90% (no condensation).
If the same indication is displayed after the remedy,
please contact your dealer or service company.