I have a spider iv 120 watt combo. The preset knob has stopped working on me. It worked fine and one day just quit. If i push it in, it works to enter but when i twist it either way, nothing happens. I can still fill the click when i turn it. I don't know if there is anything i can do. I feel that if i take it in, it will cost more to fix than i can just replace the amp. If anyone has experienced this and solved the problem please let me know. I have not tried factory reset. I have so many sounds saved and for different bands, i don't want to try and have it do nothing and then i can't dial in the sounds with the preset knob not working
