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Brian BaileyAug 8, 2025
What to do if my ViewSonic Projector says 'CHECK THE AIR FLOW'?
- CCody HamiltonAug 9, 2025
If your ViewSonic Projector displays 'CHECK THE AIR FLOW', it indicates the internal temperature is rising. Turn the power off and let the projector cool down for at least 20 minutes. Then, check for the following: * Are the air passage apertures blocked? * Is the air filter dirty? * Does the surrounding temperature exceed 35°C? If the message persists, set FAN SPEED to HIGH in the SERVICE item of the OPTION menu.
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