Klipsch Promedia 5.1 Won't Power Up

[ShortbusKid]

Hey all,
Been browsing these forums for a while now, but this is my first post.

I have a set of the older Klipsch Promedia 5.1 with the control tower (pictured below). The past couple days the control tower has not been able to change volumes or power off when I push the button. I had to pull the plug on the sub/amp to reboot it. A little go it just shut off and won't boot back up. Any ideas here?

Was thinking if it's just the tower, maybe Klipsch sells replacements or I could use the pod that comes with the new Ultra series?