Install a replacement BenQ MW811 projector lamp

Written by
  • Shelagh M.
  • 8 years ago

BenQ_MW811ST_projector Don’t call the technician. Follow this easy guide to replace the BenQ MW811 projector lamp.

Go with authentic

Protect your projector by investing in an authentic lamp. An authentic OEM projector lamps is the only lamp that will keep your BenQ MW811 projector working properly. Here are four reasons to avoid using counterfeit projector lamps:

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Warning signs for end of projector lamp

BenQ-_MW811ST_projector_BenQ 5J.J3K05_projector_lamp_warningWhen the BenQ MW811 projector lamp is reaching end of life, three warning messages will appear on screen. The lamp indicator on the projector will start flashing orange. You may notice the image deteriorating or the color looking off. Lamp hour information can be found on the INFORMATION menu.Setting the projector to economic mode will extend the projector lamp life.

Replacing the projector lamp

Before changing the lamp:

  • Reduce the risk of electrical shock by disconnecting the power cord on the BenQ MW811 projector.
  • Reduce the risk of severe burns by allowing the projector to cool for at least 45 minutes.

BenQ-_MW811ST_projector_BenQ 5J.J3K05_projector_lamp_remove_cover_screw
Loosen the screw holding the BenQ MW811 projector lamp cover. The BenQ MW811 projector uses the BenQ 5J.J3K05.001
Lift up the cover. Remove and dispose of the lamp protection film. Do not insert your fingers between the lamp and the projector. The sharp edges inside the projector may cause injuries.
BenQ-_MW811ST_projector_BenQ 5J.J3K05_disconnect_projector_lamp
Disconnect the projector lamp connector from the projector Loosen the screw that secures the BenQ 5J.J3K05.001 projector lamp.
BenQ-_MW811ST_projector_BenQ 5J.J3K05_remove_old_projector_lamp
Slowly and gently pull the BenQ 5J.J3K05.001 projector lamp out of the projector. Pulling too quickly can cause the bulb to shatter. Learn what to do should the bulb shatter.
NOTE: The BenQ 5J.J3K05.001 projector lamp contains mercury and should not be thrown into regular garbage. Recycle your used lamps.
BenQ-_MW811ST_projector_BenQ 5J.J3K05_install_new_projector_lamp
Insert the new BenQ 5J.J3K05.001 projector lamp first into the connector on the projector and reconnect the lamp connector.
Make sure the handle is fully locked. Tighten the projector lamp screw. If the screw is too loose or too tight, the projector may not turn on.
Re-install the  BenQ MW811 lamp cover and tighten the screw. Reset the total lamp operation t

Reset the projector lamp counter

BenQ-_MW811ST_projector_BenQ 5J.J3K05_reset_projector_lamp_timerWhen the BenQ 5J.J3J05.001 projector lamp in the BenQ MW811 projector has been changed the projector lamp timer must be reset:

  • Turn on the BenQ MW811 projector.
  • After the startup logo, open the On-Screen Display (OSD) menu.
  • Go to the SYSTEM SETUP.
  • Scroll over to Advanced > Lamp Settings menu.
  • Press MODE/ENTER to display Lamp Settings page is displayed.
  • Highlight Reset lamp timer. A warning message is displayed asking if you want to reset the lamp timer.
  • Highlight Reset and press MODE/ENTER. The lamp time will be reset to “0”.

Extend the life of the BenQ 5J.J3J05.001 projector using these tips:

  • Keep your air filters clean to avoid overheating the projector.
  • Use the Lamp Power option on the BenQ MW811 and set to Economic Mode to reduce the amount of power used by 20%.
  • Learn more with Top tips for extending DLP projector lamp life.


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