Safety first: Disconnect the appliance from mains power before accessing internal components.

Check other zones: Verify whether other hotplates work. If only one is affected, the element or its control is likely at fault.
Access element: For built-in cooktops, remove from the worktop and take off the underside cover. For ranges, remove the top panel if accessible.
Test element continuity: Disconnect the wires from the suspect element and measure resistance across its terminals. An open circuit indicates a failed element that must be replaced.
Inspect switch: If the element tests good, test the infinite switch or energy regulator by checking for continuity between appropriate terminals when the knob is turned on. Replace the switch if it does not close.
Check wiring: Tighten any loose spade connectors and inspect for heat damage. Replace damaged wires with high-temperature-rated cable.

Warning: Elements and regulators can remain hot after power is removed. Handle with care.

Electric hotplate or radiant zone on the cooktop does not heat at all.

Possible Causes