Question about BenQ 250W UHP Lamp PB8120/8220/8230 Projector Lamp
You may have a fan out or somthing is blocking the vents. Have you looked to see if it has a filter? some DLP units dont have filters but most LCD units do. If the filters are some what clogged then it may not be cooling good and tripping the thermal shutdown.
Projectors use high power bulbs that get SUPER hot and they use a thermal sensor above the lamp so if it isnt cooling properly it wont start a fire. It may have other issues but i would start here because this is normal maitence on projectors.
Posted on Jun 30, 2010
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I also had this problem but was able to get to the menu before it turned itself off..... Instructions in the manuel on how to reset the timer.
15. Resetting the lamp counter
Do not reset if the lamp is not replaced as this could cause
i. Press and hold the Exit 5 button on the
projector for 5 seconds to display the total used
ii. Press Auto on the projector or on the remote
control to reset the lamp hour to "0".
iii. Wait about 5 seconds to let the OSD disappear.
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