My SD9's footswitch was acting weird, so I unscrewed a few screws and the footswitch started switching right (before it only worked about half the time when pressed). However, now I am noticing that even when switched off, the distortion effect is VERY faintly present. I could live with this, but its going to get on my nerves, and I was wondering if anyone knew what could be causing this ?
spray the metal contact points with contact cleaner (Deoxit) and let dry for 10 minutes. Report back.