After 3,800 hours, a Mitsubishi projector will display a message warning you to replace its lamp. After 4,000 hours, the projector will shut off and will not turn on again. Replacing the lamp isn't enough. After installing a new lamp, you also have to reset the projector's lamp operation time in order to make it turn on again.
Step 1
Unplug the projector and replace the lamp following the instructions supplied by Mitsubishi.
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Step 2
Plug the power cord back into the wall outlet.
Step 3
Turn the projector's main power switch on.
Step 4
Hold down the two arrow buttons and the Power button on the control panel at the same time for at least 3 seconds. The status indicator will blink twice, indicating that the lamp hour meter has been reset to zero.
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