If your ViewSonic projector turns off automatically, you can check and troubleshoot the following reasons.
Free Airflow
- Please make sure the intake and exhaust vents of your ViewSonic projector have no obstruction. Don’t place sundries on the projector to avoid vents obstruction.
- Make sure the projector is not enclosed or right against a wall – it needs ventilation space.
- Don’t place the projector on top of other electronic equipment, such as an AV receiver.
High Altitude Mode
If your ViewSonic projector is being used at some places with a higher altitude, you will need to turn on the “High Altitude” mode. The fan will thus operate at a higher speed to intake more air. Please check the user guide to enable it.
