The surface units will not maintain a rolling boil or will not cook fast enough.
You may be using inappropriate cookware.
Use pans which are flat and match the diameter of the surface unit selected.
In some areas, the power (voltage) may be low.
Cover the pan with a lid until the desired heat is obtained.
The surface units will not turn on.
A fuse in your home may be blown or a circuit breaker may have tripped.
Replace the fuse or reset the circuit breaker.
The cooktop controls are set improperly.
Check if the correct control is set for the surface unit you are using.
Areas of discoloration on the cooktop.
Food spillover was not cleaned.
Refer to the Maintenance section.
The surface is hot and the model features a light colored cooktop.
This is normal. The surface may appear discolored when it is hot. This is temporary and will disappear as the glass cools.
The surface unit frequently cycles on and off.
The element will cycle on and off to maintain the power setting.
This is normal operation, and not a system failure. Cycling at the high power setting is normal and can occur if the cookware is too small for the cooktop element or if the cookware bottom is not flat. Use the cooktop as usual.
The surface unit stops glowing when changed to a lower setting.
The unit is still on and hot.
This is normal.
Scratches or abrasions on the cooktop surface.
The cooktop is being cleaned improperly.
Scratches are not removable. Tiny scratches will become less visible in time as a result of cleaning. Use ceramic glass top cleaning cream. Do not use chemical or corrosive agents. These agents may damage the surface of the product.
Cookware with rough bottoms was used on the cooktop or there were coarse particles (eg. salt or sand) present between the cookware and the surface of the cooktop.
To avoid scratches, follow the recommended cleaning procedures. Make sure cookware bottoms are clean before use, and use cookware with smooth bottoms.
Cookware has been slid across the cooktop surface.
To avoid scratches, follow the recommended cleaning procedures. Make sure cookware bottoms are clean before use, and use cookware with smooth bottoms.
Brown streaks or specks.
Boilovers have been cooked onto the surface.
Wait until the surface cools down. Then, use a single-edge razor-blade scraper at approximately a 45° angle against the glass surface to remove the soil.
See the Maintenance section.
Areas of discoloration with metallic sheen.
Mineral deposits from water and food have been left on the surface of the cooktop.
Remove using a glass-ceramic cooktop cleaner.
Use cookware with clean, dry bottoms. Clean the cooktop with a ceramic cleaning agent regularly every week.
Cracking or "popping" sound.
This is the sound of the metal heating and cooling during cooking.
This is normal operation and not a system failure. Use the cooktop as usual.