line 6 Dl4 problems

[jglasenapp]

Hey i have a line5 dl4 and im having an issure with the peadl turning on.. the lights come on but the tap doesnt flash and when i start to tap it puts in the right tempo but wont delay it then i move the mix volume or switch the setting and it delays the looper works fine and right. but when i shut the pedal off it does everything over again and i go through the same process.. any one know anything