I've owned this unit for approx. 3years. It was worked flawlessly. I had to disconnect all my HT system due to remodeling. Reconnected everything back and my sub will not operate. The light stays red and no sound comes out. I've checked connections behind the receiver and all checks well. If I disconnect the sub cable from the back of the sub, I hear a faint deep sound coming from the sub. When I reconnect the cable, the light turns green but eventually turns to red again.
Any suggenstions?