I have a problem with my Wadia CDP.

The CD tray (Pioneer-S505 stable platter) has started to open and close by itself.

This occurs with or without a CD in the tray. I'll be listening to something using the DAC output and the tray will just open. Sometimes it closes immediately but most of the time it just stay open for period of time and then closes. Are there any adjustments that I can make or is this a send it to Wadia for repair? This doesn't occur when playing a CD. HELP!