Hi Matman Did you try different positions of the front power switch. I dont have my amp at the moment but as I recall I toggled between the positions and the trigger worked when initially it did not. Hope that helps

LFR 1100s QS8s QS2s ADA15000-4, VP 150, M 3s,Polk CSI A6, Klipsh B10B, SVSPB2000,PSW125x2