I had a footswitch that began to be intermmitant. I took the switch apart, it's a pain to put back together, cleaned it lightly, but it didn't help at all. With the back panel removed, I used run of the mill Radio Shack Precision Electronics Cleaner and doused the sucker. The bomb.com, it worked. Don't use WD40 or any cleaner that has distillates. it must be residue free. If you're having a problem, try it.