Question about BenQ PB8220 DLP projector 2200 ANSI lumens 1024 x 768 Multimedia Projector

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BenQ PB8220 DLP projector - lamp button continues to flash after bulb replacement

My projector recently lost bulb operation and shutdown with the bulb light button flashing. I replaced the bulb and the projector tries to power up but when the fans turn on the lamp button starts flashing and will go into shutdown. If anyone has any ideas or suggestions I would appreciate them.

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  • DartVeiga Jan 20, 2008

    Hello, I'm having the same problem. Mine is Model Benq PB8253. Projector started, then afer a couple minutes it goes off with the red lamp led flashing. Just replaced the lamp, but the problem persists. Tried to remove all connecting cables, except for the power, but still the same problem. anyone with similar problem or solution, please contact me at


  • markzabel Aug 15, 2008

    ME too and have returned to Benq FOUR  TIMES AND bought a new bulb.  Now out of warranty.

  • tomhubbard May 13, 2009

    Same issues with our PB8253, intermittent shutoff. Fans working, filters clean, new lamp. Total of 12 units, all doing smae thing.

    Build date of 6/06. any suggestions or do I have new boat anchors?

  • Anonymous Mar 18, 2014

    Changed bulb; unit will not start. Flashing orange but bulb will not reignite...



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After 2 years I finnaly solved the problem. There was a flaw in the lamp´s temperature circuit. A technician disassambled my BENQ PB8253 unit and fixed the problem. Charged me US$ 75.00. I´m in Brazil.

Hope this can help.

Posted on Sep 14, 2009

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I have had the same problem about three times over the past two years, I have identified that it depends really much on in which sequence you switch off the projector, esp. if it is connected to another device (e..g amp for home cinema). So first the double press to power off, wait for the fan to cool off (no more sound), click on the on-off button to switch off, then switch off your other device if teh PB8220 is conected to it or a laptop).
Every time I've had the problem (the red lamp flashing after reboot), I've left the projector UNTOUCHED for TWO MONTHS, and it restarted and performed well after that. I know this is a real pain but it worked.

Posted on Mar 28, 2009

  • grahamjat Feb 01, 2011

    I think techvictim may have mistaken DartVeiga's problem Temperature Indicator with the potential problem with the Lamp Indicator.
    Techvictim is certainly correct that the power-down sequence should be followed correctly, otherwise powering back up can be well-neigh impossible.
    However, I do not believe the two problems of a misleading Lamp Indicator and faulty Temperature Indicator are related.



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