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Laptop error on boot up fan error and two beeps

We have what looks like a serious problem. We have a Lenovo Thinkpad T430S. And in another country and limited access. The laptop worked fine on our last trip of 3 weeks and then this time it worked fine in the airports and host home with wi-fi. We have a USB external fan but did not use it on this trip yet and we arrived yesterday. Usage of the laptop have been minimal. I can say the left bottom was warm but clearly not overheating like the last one we lost back in early 2018. Now when booting we get fan error and it shuts down. We are at an internet cafe and doubt we can survive without the laptop until Dec. 11. The trip before last we lost another Lenovo to some problem that was diagnosed using the beeps. It was a bad nVidia chip and a problem on different brands and the repair shop in USA said they did not do soldering repairs so it was trash. Then we buy this one refurbished off Amazon and 2 days into this trip;  fan error then two beeps and shutdown. We have only access here at an internet cafe to get replies and help. It is around 4pm and 5pm EST. I will sit here and wait for answers. I did not bring the laptop with me to the internet cafe. Thanks
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Scott SilvaNetwork Administrator
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Commented:
did you try some canned air to blow out the fan? It might be full of dust, especially if it is used.
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Author

Commented:
We are in Guatemala and dust could be an issue. Finding common items (can of compressed air) in stores is hard and removing all the screws to try to take off the bottom may not work. I tried that on the other one and massive screws everywhere. I can try to blow air into the fan which I think is top left on the bottom. Maybe the host where we stay has a vacuum cleaner we could use to pull dust out and try that. Thanks.
Network Administrator
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Commented:
If you can force air thru the fan slots, it will usually spin the fan and dislodge dust. No disassembly required.
nociSoftware Engineer
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Distinguished Expert 2019
Commented:
Car garages have compressed air. Dont blow yourself, you can blow liquids inside aswell.
(Most garage tools are air power, tire filling etc  might work better then vacuum cleaner).
SILVER EXPERT
Distinguished Expert 2019
Commented:
blowing air into the laptop will blow the DUST into the laptop - which i don't recommend - but it can help temporarily
check if the fan turns - or not - if not, it can be a bad fan
i would go to a shop and ask them to fix it
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Author

Commented:
I turned on the external fan and with the cord being short was able to blow just a small amount of air toward the fan. It booted up and has been good since then, maybe 4 boots. The internal fan is working properly and I'll monitor the error or non error in the coming days. I have a portable dust vacuum for use with cleaning the inside of a tower for example but no access to that until Dec 12. Walmart down here had no can of compressed air but there is an auto repair shop near by if the fan error returns.
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Author

Commented:
So blowing air in there is to force the dust out?
I am traveling and have not found a can of compressed air even at Walmart. I do have a hair drier and while the air is hot but only up close, I could sweep it past the fan vents over a time frame of 1 second at a distance of 6-10 inches. If dust is accumulating inside why not a method to remove it like a vacuum.

It's been booting fine and air is exiting the fan vents, so no more errors.
SILVER EXPERT
Distinguished Expert 2019

Commented:
>>  So blowing air in there is to force the dust out?  <<   NO it blows the DUST in the laptop
if it helps -it' only temporarily
But let's hope it keeps working long enough for your trip
nociSoftware Engineer
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Distinguished Expert 2019

Commented:
It might blow dust into the laptop it doesn't neet to. (depending on how airflow has been aranged. Sometimes it is a separate duct.
Dust inside systems may cause problems when air becomes moist (possibly creating short circuits).
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Author

Commented:
If blowing air in is bad then why not a vacuum cleaner to remove dust?
SILVER EXPERT
Distinguished Expert 2019

Commented:
it does not suck enough to take out the collected dust inside
personally- i use an old hoover VC- round type - which can use the in or output for sucking or blowing
but Always AFTER disasembling the laptop
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Author

Commented:
I do have a room vacuum which has a small attachment for increasing the dust collection process power. I'll try upon return to home.
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Author

Commented:
thanks
SILVER EXPERT
Distinguished Expert 2019

Commented:
i hope it turns out ok
Scott SilvaNetwork Administrator
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Commented:
Sometimes just removing the memory covers will give you access to part of the processor fan assembly.

Also, in over 30 plus years of IT I have never had an issue from blowing dust OUT of a laptop...

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