[cmdang]

In the middle of a movie the other night (no more than 1.5 hrs of viewing), my ceiling-mounted LT 150 developed a continuous high-pitch noise. I did the only thing I knew to do, which was to turn it off. While off, with the fan(s) continuing, the noise persisted, and was finally silent when the fan(s) stopped. I assumed it was fan-related. Out of paranoia, I also hand-fanned the pj while it was cooling itself.


The noise did not return upon turning the pj back on that night, and I had no problem with the pj last night, although viewing last night was less than 30 minutes. Up to now, I've had no problem with it; I have used about 400+ hrs of the original bulb.


Anyone else experienced this problem? Any thought as to what the cause & remedy could be? As of now, I don't intend to send it back to NEC (still under warranty) unless it recurs; is this a good idea or am I waiting for a real disaster to happen?


Thanks.

 

[robertmee]

Quote:

Originally posted by cmdang Out of paranoia, I also hand-fanned the pj while it was cooling itself.

Are we all sick or what?

 

[mcody]

I have heard a few odd noises from my LT-150 on occasion but they always leave as quickly and miraculously as they arrive.


I also sometimes turn on the PJ and get an oddly washed out, almost gray image. If I shut it off and restart it usually goes away.

 

[nataraj]

I had exactly the same problem. Except, the noise returned every time I switched on the projector ...


I called NEC customer service and they gracefully sent me a refurb LT150 with about 150 hours on it. They sent it overnight with return shipment label for the noisy one. Great customer service.

 

[babar333]

My NEC LT150 developed this high pitched fan sound also. I had to send it in to have the fan replaced. Others have reported the same problem. I wanted to keep my same unit so sent it in for repair under warranty. Great service by NEC.

 

[Frode]

This is a common problem with the LT150. Some of the earlier units had underpowered fans that would become damaged under heat stress after a while. Newer units and refurbs usually come with bigger fans. I've had to send in two units for this - and the third is currently doing fine (larger fans).

 

[cmdang]

Thanks for the info, folks. One thing for sure, one never feels alone here.


Maybe I should send it in now for fan replacement. Larger fan sounds good, but how about the noise?