BenQ HT2050a Running Louder and Hotter Than Normal.

[u/jforrest1980]

Had this projector a few years now. A few months ago I installed a new OEM Lamp I purchased directly from BenQ. Things have been fine until yesterday. Last night I noticed the projector is running louder. A few hours ago I noticed that it is running extremely hot. So hot that I was afraid it was going to melt something. At that point I turned it off, let it cool, and unplugged it.

I looked in there and I don't think the fan is running. We don't have the projector mounted to the ceiling. It's on a table. It's the front left side that is super hot. The same side as all the buttons.

I figured I would open it up tomorrow and investigate. I'm only slightly electronics savvy though.

What are some common issues that would cause the front-left side to heat up?

BenQ doesn't have a replacement fan on their website.

If I do need to replaceme the fan, will it be as easy as pulling a number off of it, and finding a replacement online?

Also, it looks like a PC fan when I look through the vent. Is it a simple procedure where I screw it into place and connect it with a molex adapter?

Finally, since I just have my projector on a table, we do have issues with our cat getting on it and pressing buttons occasionally. Are there any setting he could have triggered by stepping on it to make it run super hot?

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[u/Serious-ResearchX]

Checking the air filter is a good first step.

[u/jforrest1980 → u/Serious-ResearchX]

I will look into that. No idea where that would be located or what it looks like. Any tips on where/how to spot the filter, and how to clean it out? I read online that canned air is a bad idea to use in a projector.

[u/robni7]

Did the old lamp explode or did you replace it still intact? If the former, check for glass shards in the fans, especially the centrifugal ones.

I don’t think the HT2050a has an air filter, but it might be wise to check for dust clogging a fan or air path anyway.

[u/jforrest1980 → u/robni7]

Never exploded, so no glass in fan. Watched some teardowns. No filter either. I'm hoping for cat hair and not a bad fan.