When the SONY VPL - ES1 projector is turned, the lamp cover opens , no light and after a while lamp cover closes. Mounted on the ceiling, it has happened after it was working well previously. Lamp has been changed to new one

Question edited for clarity.
Question moved from Misc to model category.

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Why won't my Sony projector turn on? Projector Not Turning On

Ensure the projector is properly plugged into a working outlet. Check the temperature lights to make sure the device hasn't overheated and shut down. If you are using a remote control to turn on the projector, check the batteries. Be sure all of the projector latches are closed.

How to Quickly Fix Common Projector Issues ' K-12 Tech Repair

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the filter cover sometimes gets distorted and the small plastic dimple which presses against the switch doesnt activate correctly, check the lamp cover switch also.

That could indicate the following-

1. The lamp cover or filter cover aren't properly closed. Try shutting the projector down> opening both covers> closing them> restart

2. The lamp is nearing the end of its life or is faulty and you'll need to replace it.

hi,
your projectors lamp cover may be open. or there is some thing happened (may be contact problem) with the lamp cover open sensing switch. just open the door and close it. and then try again.
ok

replace the lamp.

does the "lamp/cover"-led light up? i had the same thing happening, the lamp either broke or is about to break and the projektor won't turn it on again to protect itself. if its very urgent, open the projector pull the lamp out and put it in again, it might work for 1 or 2 more times, but it is very likely to explode (usually not breaking the projector but for sure not good for it).

good luck!

usually the projector powers and cools down. if you restart it it will open the cover, not projecting anything and after 10 seconds it will close again. this happens if the lamp is shortly before the end of the measured lifetime (no fixed hours) to protect the projector. usually if you take it out once or twice it will work for 1 or 2 more times but the bulb is very likely to explode (not destroying the projector but not good anyways)

Hi jimmac123

Where exactly in the UK are you ? I'll try and locate another - more helpfull company.

the cover switch is probably not fully made.
Ensure that the cover tangs are pushing the pin
on the miniswitches.
Try putting slight pressure on the fan or lamp cover to see if the lamp/cover light
stops flashing.
you will need to do a restart on the PJ to check this out

probably the lamp could be failing
or check the fan'lamp cover switches are being 'made'