Does it have any lights?
No: check all power cables. Likely something is loose. Even if it looks tight it could need a slight adjustment.
Yes:
Please determine the Bulb type preferably or Projector Model so we know what bulb you will need.
The NEC’s have the bulb type on the front right hand side:

If its an Epson the Projector Model is sufficient.

Please submit a ticket by clicking below and including the information collected

