Keeps running after shutting off-does not react to temperature co
Unplug the unit all shuts down, but replug in and seems like just the compresser is running and no fan, but the coils getting cold. if you turn it on all works, but it stays cold and does not go to fan mode when you regulate the temp control Thankyou
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Re: keeps running after shutting off-does not react to...
It is normal for the system to run on its own without being turned on...the compressor motor needs to cool down and will run in an unloaded state. feel the back of the unit while its running and you will notice the amount of heat the motor generates. let it run.
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This sounds like a circuit board has a component that may be heating up and failing. When the unit is unplugged power is shut off to the circuit board, which will allow the component to cool down and start to work again. If this is the case then the component will fail completely at some time.
The computer has a cpu fan that can get dirty over time. It's job is to keep the cpu cool. When the cpu overheats, the computer senses it and shuts it down immediately, to prevent permanent damage to the cpu. You can clean it by blowing compressed air into it, and should do that every few months, as routine maintenance. This is the most common thing that shuts a laptop down, other problems involve repair, so try this first. I bough a $7 three inch fan at Walmart to help cool the laptop, and when I run it, I never have it shut down on me, but once in awhile it will without the fan, especially when I play dvds or videos, which really work th' heck out of the cpu. There are also commercial laptop cooling devices, but my little fan works just fine. Hope this helps.
Maybe it's shutting down because it overheating. Check all your air vents for dust buildup. Use an old toothbrush to brush the dust away from the vent holes and blow air through the vents using one of those compressed air cans made for cleaning keyboards. One time I worked on a Sony laptop that I had to take apart to get all the dust cleaned out of the air vent. You can also try running your restore disk with the laptop sitting right next to a window A/C unit. Try to position the laptop so it gets maximum exposure to the cold air of the A/C unit. If you get the laptop working again and you think overheating is a problem I recommend downloading a free piece of software named FanSpeed. Here's a link. http://www.softpedia.com/get/System/System-Info/SpeedFan.shtml I'll let you read the description for yourself, but in short it allows you to monitor the temperature inside your computer and to adjust how the fans react to this temperature.