1. Make sure the kiln is centered on the stand and that the stand is stable. Remove flammable materials from around the kiln.
2. Vacuum the kiln with the brush nozzle of a vacuum. Remember to vacuum the brick grooves. If you have difficulty removing debris inside the grooves, use a narrow wand-type vacuum cleaner nozzle being careful not to scrape the brick walls.
3. Vacuum around and under the kiln: floor, shelves, and walls. This keeps the kiln interior cleaner and adds life to the vent motor.
4. Check the kiln wash on shelves and kiln bottom for cracks and bare spots in the coating. Remove any glaze drips. Reapply kiln wash if needed.
5. Check the power cord and outlet for heat damage. Has the cord touched the side of the kiln during firing? This will damage the cord insulation. Replace the cordset or wall outlet that shows signs of heat damage.
6. Make sure elements are not bulging out of the grooves. Repair if necessary.
7. Coat the inner lid surface and the top rim of firebrick with kiln coating cement after every few months of regular firing.
8. Kiln Downdraft Vent: Check the aluminum vent duct for leaks.
9. Digital kilns: Make sure the thermocouple extends far enough into kiln. (1/4" wide: 1"; 1/8" wide: 5/8".)