Are the controls set correctly?
• Push in knob before turning to a setting.
For coil element models, is the element inserted properly?
• Turn off the unit and fully reinsert the element into the receptacle.
For electronic touch pad models, have you accidentally set the control lock?
• Press down and hold the control lock button for 5 seconds to unlock the control lock. The light next to the lock should turn off. If it still appears to be locked, turn off the power to the cooktop for a minute, and then turn power back on to reset the controls.