Epson Z8250NL, Z8455WUNL manual 100, Points, On, on the configuration menus Extended menu. s p.67

Problem Solving 100

Status	Cause	Remedy or Status
	No Air Filter	Check that the air filter is securely installed. s p.122
	Air Flow Sensor Err.	The projector automatically turns off about one minute after it detects that there is no air filter.
		If the error continues even though an air filter is installed, the air filter sensor may be defective. Stop using
		the projector, disconnect the power cable from the electrical outlet, and contact Epson. s p.114
	Low Air Flow	(This is not an abnormality. However, projection stops automatically if the airflow falls any further.)
		The message "The air filter is clogged. Clean or replace the air filter." is displayed. Check the following two
		points.

•Check that the air filter and air exhaust vent are clear, and that the projector is not positioned against a wall.

•If the air filter is clogged, clean or replace it. s p.116, p.122

			If the Low Air Flow status continues after cleaning the air filter, replace the air filter with a new one. s p.122
			If the error continues after checking the points above, stop using the projector, disconnect the power cable
			from the electrical outlet, and contact Epson. s p.114
		Air Filter Notice	"Time to clean the air filter. Clean or replace the air filter." is displayed. Clean the air filter. s p.116
			If the air filter is stained yellow with tobacco smoke and cannot be cleaned, replace it with a new one.
			The indicators or messages regarding "Air Filter Notice" are displayed only when Air Filter Notice is set to
			On, on the configuration menu's Extended menu. s p.67
q	• If the projector is not operating properly, even though the indicators are all showing normal, refer to “When the Indicators Provide No Help”. s p.101
	• If the error is not indicated in this table, stop using the projector, disconnect the power cable from the electrical outlet, and contact Epson. s p.114