See blue arrows for screws to remove. This is a gen 1 or 2 pro with gen 3 upgrade, your radion may very. Do not do this tear down with out an antistatic mat, if you're clumsy, and IF you're still in warranty send it back to Ecotech. Also if you're fan is Hella loud or if your unit is running hot take the time to use a stiff bristle brush and clean out the dust/salt creep.