If the Acer C202i Projector’s lamp suddenly go off during watching, or the device suddenly shuts off, under most condition, it is because that the whole divice is overheated.

Following the steps bellow may help you to fix the issue

1. Leave the Acer C202i projector to cool for a few moments.

2.Once cooled down, check if anything is blocking the air vent off after a period of time.

3.Turn on the projector agian.

If the projector is turned on again, it proves that it is overheating that causes the Acer C202i Projector shuts off. Try to avoid let the projector work under high temperature in the later use.

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