HELP!!! My Satellite Series A215-S7444 Laptop Randomly Shuts Off!!

Question

    I own a Satellite A215-S7444 and it will randomly shut off. Sometimes on good days it won't shut off at all while I might run it for many hours, but this is very rare. Most of the time I will be running it and it will shut off out of nowhere, I will turn it back on right away and it will power back on with all I was just doing lost in the process. It will again power down after I restart it after a couple of mins, and each time I restart it the random shutdown takes less and less time to shut off. When it gets to the point where I can't even power it on past the windows logo, I have to let it sit for a couple of hours to a day till I put it on again and it will let me use it for a while till it starts shutting down again. Every time it starts shutting down it's always in steps like (1st shutdown 30 min into use, 2nd shutdown 10min into use, 3rd shutdown 5min into use..... etc.) I downloaded a program to monitor if it's overheating when it shuts off and it's definitely not overheating. I checked the fan and cleaned it out, and it works fine and is clean. The shut off seems to happen mostly when I am trying to download or watch any video or movie files from the web. Usually when I try to watch one it is almost guaranteed to shut off shortly after, and I can be online for hours but as soon as I try to download or watch video it is a knockout punch for the laptop. I can repair myself and anything else that might need to be done or checked I just can't figure this mystery out. I do not want to take this in for repair because it is too expensive for them to tell me "figuratively speaking" that it was a $10 part and I have to pay $300 for labor, diagnostics, and repair when I could have done it myself for just the cost of the part. If I have no other choice then I will bring it in, but that is if there is no other choice. Please someone out there help me!!!!  

Answer 1

same here. the only difference is that, it doesn't matter what i do such as just using microsoft word software, or just surfing the internet. It will eventually shut off by itself for only like 1 hour or less than 1 hour sometimes. I noticed that every time it shuts off, it's too hot where the fan is located. I don't know what's wrong with it because i don't have any knowledge about computers. All i know is that  it shuts off out of nowhere. Is this what you call overheating or something else?
It pisses me off because i'm doing my homework or a paper and it will randomly shut off while i'm doing something important for school. And to the fact that i just bought this laptop 2 yrs ago, the problem started when this laptop was almost 1yr. like you, i don't want to spend a lot of money just for labor. And oh, also, it will shut off right away when i use USB ports. anything that i plug in the USB ports or any accessories such as ports from laptop to the tv. it shut offs right away and i couldn't turn it on right away. not unless i wait for like 2 hours or more? after 2 hours, i am able to use it for quite a bit only.  it frustrates me. 
is this manufacturer's problem? or what? what should I do? Should i bring it to the computer repairer again? I brought this computer for many times already.