Before you call for service...Troubleshooting TipsPossible Causes What To DoControl knobswill not turn Controls improperly set. • To turn from the OFF position, push the knob inand then turn. The knob can only be turned in acounterclockwise direction. When the knob is at anyother position, it can be turned in either directionwithout being pushed in.Fan does not work The fan control knob is • Turn knob in clockwise direction to turn fan on.improperly set.Cord improperly connected • Check connections. Turn on power at the fuse box.or power turned off.Poor venting Clogged filter. • Clean filter per instructions.House too airtight. • Open a window slightly to provide fresh air source.Wall cap obstructed. • Removeblockage from exterior wall cap.Well cap damper door stuck. • Check exterior wall cap damper door for free movementor obstruction.Duct length exceeds • Reducenumber of elbows to simplify duct run.recommended 100equivalent foot maximum.Ting scratches or metal Incorrectcleaning • See the Cleaning the glass cooktop section.marks (mag appear as methods being used.cracks)or abrasions on Cookware with roughradiant cooktop glass bottoms being used orsurface coarse particles (saltor sand) were betweenthe cookware and thesurface of the cooktop.Cookware has been slidacross the cooktop surface.•Be surecookwarebottomsandcookwarearecleanbeforeuse.Usecookwarewithsmoothbottoms.Tingscratchesarenotremovablebutwillbecome lessvisibleintimeas a resultofcleaning.Areas of discoloration Improper cookware • Marks from aluminum and copper pans as well asor dark streaks on the being used. mineral deposits from water or food can be removedcooktop with the cleaning cream.Hot surface on a model * This isnormal. The surface mau appear discoloredwhen itwith a light-colored cooktop, is hot. This istemporaru and will disappear as the glass cools.Food spillovers not ° See the Cleaning the glass cooktop section.cleaned before next useIncorrect cleaning ° Use recommended cleaning procedures.methods being used.Hot sugar mixtures Hot cooktop came into • See the Glass surface potential for permaent damageor plastic melted contact with these section in the Cleaning the glass cooktop section.to the surface substances.Pitting (or indentation) Hot sugar mixture spilled • Call a qualified technician for replacement.of the cooktop or plastic melted on thecooktop.32