Symptoms
• Cooktop will not turn on or respond to touch controls
• One or more burners fail to heat
• Inconsistent heating or power cycling on and off
• E8 error message displayed on the digital control panel or via LED indicator lights
• Touch controls appear unresponsive or delayed
• Cooktop may shut down automatically during cooking
• Induction cooktop may not detect cookware properly
Possible Causes
• Faulty temperature sensor on the cooktop surface or internal control module
• Loose or disconnected wiring between the control board and heating elements or sensors
• Moisture or spill damage affecting sensor connections or touch panel electronics
• Cracked glass cooktop surface on smoothtop or induction models disrupting sensor function
• Defective touch control panel with intermittent electrical contact issues
• Control board failure or corrupted firmware on the microprocessor
• Improper 240V electrical supply to electric or induction models, or 120V supply interruption to gas control module
• Thermal sensor malfunction due to age or manufacturing defect
Safety Checks You Can Do
• Ensure the cooktop is completely powered down and wait 5 minutes before proceeding with checks
• Inspect the home circuit breaker panel for your cooktop's dedicated breaker and verify it has not tripped; reset it if needed
• For electric or induction models, confirm the cooktop is securely plugged into a dedicated 240V outlet and check the outlet for visible damage or loose connections
• For gas cooktop models, verify the 120V control module outlet is functioning by plugging in another small appliance like a lamp
• Visually inspect the cooktop surface for any visible cracks, chips, or damage on smoothtop or induction glass
• Check that no liquid, food debris, or moisture is present on the touch control panel; gently dry the surface if wet
• Verify that the touch control lock feature is not activated (consult your user manual for lock/unlock gesture)
• On gas models, ensure all burner caps are seated properly and grates are fully seated in their correct positions
• Turn off the dedicated circuit breaker for the cooktop for a full 60 seconds, then switch it back on to perform a complete power reset
• After the reset, attempt to turn on a single burner to check if the error clears
• If the error persists after a power reset and all visual checks pass, the cooktop likely requires professional sensor or control board service
Safety First
Always disconnect the appliance from power before performing any checks. If you are unsure about any step, please contact a qualified technician.