hi everyone!

I have been mining bitcoin in my antminer s9i since one year ago and today i decided to clean it, because there was too much dust inside. I cleaned everything, except the thermal paste. After that when I turned it on, it was raising the temperatures to 100 degrees and then it turn off. But this less than 2 min online. The fans seems to be working, because shows in the app that they are at about 4000 rpm and 5000 rpm. I tried to reset and instal everything new but the problem continues. If someone could help me to solve this problem, please say something I really don't know what is the problem... everythings seems to be working fine, and the asic is showing the normal green light at the back...

appreciate all help.