to hd500 owners: how's the toe switch in your expression/vol pedal??? yung sa kin parang mahinang klase parang madaling masira at minsan hindi kumakagat, kelangan pa 2-3 times apakan bago mag on/off yung wah...
There have been reported cases of switches that don't work, but most of the folks in the line6 forums just think it's because the footswitch is brand new and kinda stiff. You really have to use your full weight to activate it.
There's an easy way to test if the switch is broken. Look underneath the pedal and you'll see a metal stud that will stop the pedal from going further down when you stomp on it. Just push down with your hand (you have to use your full weight) until you see the stud rest on the chassis. If the footswitch doesn't activate, it's definitely broken.