If your remote control of Vivitek D555 doesn’t work, you can check the following tips for troubleshooting.
1. Point the remote control towards the remote sensor on the projector.
2. Clear the sundries around the projector and ensure the path between remote and sensor is not obstructed.
3. Turn off any fluorescent lights in the room to avoid interruption.
4. Check the battery polarity and install the battery correctly.
5. Replace the battery if the original battery is depleted.
6. Turn off other Infrared-enabled devices in the vicinity.
7. Have the remote control serviced if all the solutions above don’t work.
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