If so there are prior reports of it dying and given that I do not advise repair. The issue is on the web and the strain of the work you did can cause it to fail at the motherboard and chip level. The priors are methods I don't endorse so I don't write about them.

For cleaning I rarely take the machine apart. Instead I advise a daily canned air cleaning for a week, then weekly for a month and then back to the usual 1st of the month.

Disassembly has been the end of many machines.