KGBnut,
How do you remove the top? I assume there is a screw under the label. Wouldn’t opening the unit void the warranty? Thanks for the information on the shelf and fan.
I had one go bad, so I opened it to take a look. I seem to remember there were no fasteners, I just gently pried it off. I was then able to pop it back on.
I have mine sitting on a fan, but I have not removed the top on the one that I am using now. I have heard of others that had.
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What’s nice about that fan is it is variable speed, so if it does seem too loud, you can slow it down. I used one with my TiVo Bolt and I didn’t notice any noise with a medium setting.
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Ive only run the fan on the lowest speed. I have to put my hand over it to tell if it is running as it is silent.
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I also had one quit in less than a year. Like other have stated, Tablo did honour my warranty and replaced it at no cost to me. 
@TabloTV, would you please consider offering an aluminium case. It could more efficiently dissipate heat into the surrounding environment than the current plastic case.
I can only speak for myself, but I would pay a modest premium to have one in an aluminium case.
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A metal case brings other issues such as electric conductivity. Probably why you don’t see any DVRs or TVs or radios etc. with metal cases.
My previous DVR was a Channel Master CM-7500 DVR & it has a aluminium case.
It can happen but not only Tablos, I have had a Zapperbox overheat and fail in under a year.
I think the problem really is, they are trying to make these devices smaller and smaller and still cram the same electronics in them. Not like the TiVo’s which were 3-5-7x the size roughly even if you dont count the small HD section.
More years ago than I care to remember, I worked maintenance in a medium sized motel. The town was small and there was no cable since it was too far away from any large city (this was the mid 80’s).
The motel chain contracted with a company to supply movies that could be accessed from the rooms. There was two large racks of video players running 24/7 and settop boxes in each room.
When they showed up to install the system, they had pallets of the settop boxes. The reason they gave was because there was a failure rate of up to 25% on these boxes, which I found was pretty close to reality.
I understand quality control is much better now, but electronics still fail. Sometimes for no reason that can be foreseen.
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