How do you clean a ceramic wax burner?

How do you remove wax residue from a warmer?

You can remove the hardened wax film with a counter clean or rubbing alcohol. When using the counter clean, just spray it on the warmer tray until the residue softens up and wipe it clean with a paper towel. You can pour the rubbing alcohol on a cotton ball and clean up the sticky wax until your dish looks brand new.

How do you get brown residue out of a wax warmer?