C400 Amp not turning on.

showya

It seems like the amp is shorted but im not for sure about it. The fuses are fine. Blue lite goes on then it immediately switches to red one. The red one then begins to dim down and then the power (blue) light comes back on and it cycles and never turns back on. Do i need to send this unit in? I have tried grounding it in different places with same results. Amp did work before. Not sure what happened to cause this.