Hi,
First of all check the lamp hour of your projector. Just reset it and try again. for resetting the lamp hour do the following.
1.Switch on the projector
2.select menu and the select lamp setting
3. In the lamp setting menu select lamp Reset and execute the same
After doing this if the problem remains then you have to check two things. first you have to check the lamp cooling fan of your projector. If the lamp cooling fan of your projector is faulty or it runs in a low speed this problem can occur. Another possibility is the faulty temperature sensor. you have to check the temperature sensor near the lamp. normally a senor with two wire fitted on the lamp Cage.
if fan is suspected then remove the fan and try to oil the fan and the re fix it and try again. for oiling the fan watch the following video.
The video is for oiling a pc fan you can follow the same to oil the lamp cooling fan
ok
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