The weirdest capacitor failure i've experienced was after a single speck of dust ended up inside the control panel of one the CNC machines at work. It landed di

The weirdest capacitor failure i've experienced was after a single speck of dust ended up inside the control panel of one the CNC machines at work. It landed directly on a capacitor that was part of a circuit for the backup emergency stop system. The system refused to power on because it believed the emergency stop was tripped. We ended up bypassing the circuit itself directly in electrical cabinet until we got an electrician in who found the problem capacitor. Luckily the actual e-stop still worked, this was a backup e-stop, I guess, I'm still not entirely sure. We ended up having to replace the entire CNC controller for the machine.