How to Reset a Mitsubishi DLP Lamp Hour Meter

Written by patrick nelson
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Mitsubishi DLP projectors use lamps to project images. Like a reading light in your living room, the lamp doesn’t last forever. The lamps can burn out, or their brightness can decrease with use. The recommended replacement interval is every 4000 hours. Mitsubishi projectors have a timer feature which will advise you when the lamp is nearing the end of its life. The lamp indicator blinks at 3000 hours and a replacement message appears on the screen at 3800 hours. When you replace the lamp, you need to reset the timer.

Skill level:


  1. 1

    Replace the lamp following the instructions supplied by Mitsubishi.

  2. 2

    Plug the power cord back into the wall outlet.

  3. 3

    Turn the projector's main power switch on.

  4. 4

    Hold down the two arrow buttons and the Power button on the control panel at the same time for 3 seconds. The status indicator will blink twice. The timer will be reset to zero hours.

Tips and warnings

  • Always reset the timer when you replace the lamp.
  • The lamp is fragile. If you break it, be careful not to cut yourself. The lamps contain mercury. Disposal of the lamp may be regulated by environmental laws.

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