Replacing jog wheels on xdj aero

So i spilt a tiny bit of water close to the left hand wheel, and my instant reaction was to remove the power and place the unit by a fan heater but unfortunately the heat was too much and the jog wheel has melted and warped! Everything still works, it's just really stiff to turn and so pretty much impossible to blend the pitch, is there any way I can buy a replacement wheel and fix it my self? I use it to play out every weekend so I desperately need to get it sorted as soon as possible, please help!! thanks