The only likely cause for a power filter cap blowing like that is a power surge issue or a mechanical short. The only incident like that I have experienced in decades of commercial installations was when high voltage showed up between neutral and ground on an AC outlet.
Check your power outlet with a ground fault detector, on of those little 3 light plugs.
With a volt meter test outlet voltage between hot and neutral, then hot and ground. Both should be the same and less than 130v max. Then test from neutral to ground. Ideally there should be no voltage, but often there is a little bit. To blow a cap like that it would have to see a reverse voltage spike significantly higher than its rating, typically more than 250 volts. Lightning surges coming in on grounds are a common cause. Surge protectors don't typically protect against reverse voltage on ground.
Check your power outlet with a ground fault detector, on of those little 3 light plugs.
With a volt meter test outlet voltage between hot and neutral, then hot and ground. Both should be the same and less than 130v max. Then test from neutral to ground. Ideally there should be no voltage, but often there is a little bit. To blow a cap like that it would have to see a reverse voltage spike significantly higher than its rating, typically more than 250 volts. Lightning surges coming in on grounds are a common cause. Surge protectors don't typically protect against reverse voltage on ground.