Shuts down after a few minutes

Common problems are faulty battery, or overheating due to faulty fan. If the machine shuts down when on mains power, listen carefully for the fan. If the fan is silent or slow , you could try using a vacuum cleaner to clear any fluff out of the fan unit or get hold of a laptop cooler tray. If the unit doesn't shut down on mains power, you should get the battery checked.

Few reason for the shut down
Could be heat, electrical,

1. try cleaning all vents with compress air in order to remore dust and fuzz that can be cloging the vents.
Once this done, verify that fans works proprelly,(check air flow coming out of vents) if they dont they will need to be replace or cleaned out.

2. Check power supply unit, and battery.
Sometime power supply unit is defective, getting too hot and power output is not stable and shuts down the laptop. ( change power supply unit) check if battery hold charge. if not change battery

3. Check connections for looseness and contact

If all seems normal,and none of the mentionned point seem to be defective, the cause is deeper and would need to be looked at by a technician.

The case fan should start running as soon as you turn on the computer. I would replace the fan with a higher capacity (CFM). If you have a case that can take 2 case fans, I would install the send fan. Also with the case off, check that the CPU cooler fan is functioning. With the quick shut off, I would suspect that the CPU cooler fan is not functioning. I could be impeded by dust. Vacuum and blow out any dust on the motherboard, fans and battery fan while you have the case off.
This should aleviate the shutoff problem due to overheating.
Let me know if this solves the problem.
Please rate this solutution. Thanks.

Ensure proper voltage to the unit. Check for overheated/damaged wires and/or connections in the control panel as well as at the fan motor and compressor.

The receiver in the Samsung ht-wx70 system that I have runs fine until all of a sudden I hear a loud bang and it shuts off. If I touch the unit, it is burning hot. I took the fan out and it works when I attached it to a 9v battery. Is it the fan or another problem that I should be looking at.

Sounds like an overheating problem. May want to remove the processor and check the heat sink material. While you have it out you can clean the fan and the heat sink. Make sure your air flow isnt blocked in any way and neaten up the cables if necessary. You could also consider adding another fan.

protection error message means that your unit's fan is not working

it is a feature to keep your unit from overheating

check if there is anything blocking the fan of your unit from rotating

if problem still persist replace the fan

Just a long shot, but...

I have an epson 9000i that did the same thing. Turns out that unit has a small fan (I think 60mm) right next to the power supply to keep it cool, in addition to the large fan that exhausts past the lamp. The fan runs non-stop as long as the unit is powered-up for two reasons I can think of - keep the power supply a little cooler, and the lamp a little warmer so there's not such a temp difference when it powers-up. Long story short, that fan had died. I replaced it with an aftermarket 60mm fan and it's been working fine ever since. Hope this helps.

Bob

Hey,

I think it's the cooling... Because when i let it cool down after it shuts down for like a few minutes I can boot it back up. But if i try to boot it up right after it shuts down it won't let me. I think it has a built in temperature monitor to make sure it doesn't overheat. I'm going to install some computer fans on the vents of the projector to get some more airflow. Hopefully that will do the trick.

The air intake vents in the rear were clogged with dust. They needed to be brushed and vaccumed.