WAC720 bricked

We have a few WAC720 AP's controlled by a WC7500 Wireless controller. 

So far I have:

Performed a hard reset to the AP (holding button down for 10/15seconds)

I can only use Putty to conect to the AP via the console port.

The state of the AP LED's:

power - solid green

activity - no light

network/lan: no light

Thoughts, has anyone found a work arround for this AP?

Thanks :)