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Discussion Starter #1
We have a Hitachi 1200 projector. It's run maybe 60 hrs. Was doing fine until a couple weeks back.

We have the unit hanging from an overhead mount, in free space.

All of a sudden, the temp control is shutting us down because of hot bulb. The bulb isn't really the problem.

Do bulb indicators fail? My feeling is it's a bad indicator that thinks it's too hot.

What should I check?
 

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Premium Member
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Welcome to the shack Rb!

Before thinking about defects, clean the filter that may be clogged..then see.
 
R

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Discussion Starter #4
Cleaned the filters. We've still got the problem. It thinks it's getting hot and shutting us down.
 

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If the fans are operating and the airflow is not restricted, you could have a bad thermal sensor. Very common failure point on projectors.
 
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