When using the Mojonnier mixture of solvents, a black residue may build up on the bottom of the vessel. If this coating becomes too thick, an "Overtemp Fault" "<Enter>" may occur. The black residue can be cleaned using a drill with a long shafted stiff wire brush. This type of brush (Power Brush) can be purchased from ANKOM Technology: part number X107.
It may be helpful to pour a little of the solvent into the vessel when using the brush. Scotch-Brite Pads may also be used but require more frequent cleaning. Once the bottom of the vessel has been cleaned, put some solvent on a cloth or paper towel and wipe down the inside of the vessel in an effort to remove any oil residue and particles that have been loosened from the vessel bottom.
IMPORTANT: DO NOT USE SOAP IN THE VESSEL