I have a 6-Channel Foot Switch for my DSL40CR that suddenly stopped working properly. When I turn the amp on and start playing, the LED’s on the FootSwitch light up until I go to stomp on the Footswitch to change channels then the Footswitch goes dead. No ability to change channels and the channel LED lights go out. I can change channels by pushing the buttons on the amp panel, but that kind of defeats the purpose of the Footswitch. My amp is just out of warranty so I’m screwed…any one have this problem or found a fix? I have cleaned the foot switch input on the amp and opened up the Footswitch pedal and sprayed with contact cleaner.