Electric cooktop element cycles on and off too frequently or does not reach high temperature.

Safety first: Turn off power at the breaker before internal inspection.

• Check cookware: Use flat-bottom pans that fully cover the element area. Poor contact can cause the limiter to cycle prematurely.
• Test other elements: Compare behavior with other elements. If only one behaves abnormally, suspect its switch or limiter.
• Inspect wiring (advanced): Access the underside of the cooktop and verify that wires to the element and switch are secure and not overheated.

If cookware and wiring are fine but the element still underheats or cycles excessively, replace the infinite switch or the element assembly with integrated limiter, depending on your Thermador model design.