Cooktop zone not heating other work — other zones work

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   Turn the affected zone control off, let the surface cool, and identify whether the cooktop uses radiant glass, a removable electric coil, induction, or gas. Check the control marking, display, timer or control lock, and that the selected control corresponds to the cold zone; do not touch the surface to test it.

   Expected result: The wrong zone, lock, timer, error indication, or control selection was present, or the correct zone is selected with no lock or error and still does not heat.

   Next step: Correct only the setting described by the owner's manual and make one supervised retest with suitable cookware. If the correct control is already selected or the display is abnormal, stop repeated testing and record the indication for service.

   Stop if: Stop for smoke, sparking, a burning odor, cracked or shattered glass, an uncontrolled flame, or controls that activate a different zone than the one selected.

   Why this matters

   Why: A selection or lock condition can prevent a zone from being energized without a failed element. If the correct zone remains cold while others respond, the issue is more localized and needs the technology-specific checks below.

2. Check 2

   For a radiant electric zone, use the correct control at a high setting only as the owner's manual permits and observe from a safe position for the normal heating cycle; keep hands, towels, and combustibles away from the glass.

   Expected result: The zone cycles on and off or glows less continuously than expected, or it remains completely cold while the other zones operate normally.

   Next step: Allow a normal cycle only when the surface and controls are safe. If the affected zone never warms, do not remove the glass or open the control area; leave that zone off and arrange appliance service.

   Stop if: Do not continue a test when the glass is cracked, the zone overheats, a warning or error appears, or there is smoke, sparking, or a burning smell.

   Why this matters

   Why: Radiant elements can cycle on and off, including at high settings, so a momentary dark period is not proof of failure. A zone that never heats while the others work is outside that normal cycling pattern and is more consistent with a local element, sensor, or control fault.

3. Check 3

   For an induction zone, place a pan that the manufacturer's instructions identify as compatible and magnetic, center it on the affected zone, and use water rather than an empty pan for a brief supervised heating check; use the cookware size specified for that zone.

   Expected result: The zone heats with the compatible centered pan, or it stays cool and displays a pan-detection, cookware, or other warning while the same pan works on another zone.

   Next step: Use the compatible pan and follow the model manual if the test succeeds. If the zone still will not heat water or repeatedly reports a cookware fault with a known suitable pan, leave it off and request qualified service.

   Stop if: Do not operate an induction zone empty, bypass pan detection, place metal objects on the surface, or open the cooktop to test the coil or inverter.

   Why this matters

   Why: Induction can shut off for nonmagnetic or incorrectly sized cookware, poor positioning, or an empty pan. If a suitable pan is recognized yet the affected zone stays cold while others heat it, a local induction coil, sensor, or control problem becomes more likely.

4. Check 4

   For a removable electric coil model only, turn the appliance off, disconnect power as directed by the owner's manual, and inspect that the affected coil is fully seated and shows no visible damage. If the manual explicitly permits it, compare that coil in another receptacle of the same size; do not access wiring or perform this check while energized.

   Expected result: The coil was not seated, the coil itself is damaged, the coil heats in the other same-size receptacle, or it remains cold in both locations.

   Next step: Restore only the seating or connection described in the manual and keep power disconnected during access. Use model-specific parts or arrange service for a damaged coil, failed receptacle, or any uncertainty about the comparison.

   Stop if: Do not slide the appliance to reach wiring, remove panels, bend terminals, bypass a safety switch, or test voltage yourself.

   Why this matters

   Why: A mis-seated or damaged coil can stop one zone. If the fault follows the coil, the coil is more suspect; if a known-good same-size coil fails only in the original receptacle, that receptacle or control circuit is more suspect. A coil that fails in multiple locations needs service or replacement based on the exact model.

5. Check 5

   If the owner's manual supports a power reset, turn every control off and switch off the cooktop's identified breaker or disconnect for the documented interval; restore power once, then observe the affected zone without opening the appliance or repeating resets.

   Expected result: The zone returns to normal operation, remains cold while other zones work, or the breaker trips or the fault returns immediately.

   Next step: Leave the affected zone off and give the technician the zone location, cooktop technology, control or error behavior, cookware result, and any coil comparison. Arrange qualified appliance service when the zone remains cold or the breaker trips.

   Stop if: Do not remove the cooktop, defeat a breaker, repeat a tripping reset, or measure energized wiring or terminals.

   Why this matters

   Why: A single documented reset can clear a control state, but it does not repair a local heating element, receptacle, sensor, or electronic fault. A returning fault or tripping breaker is evidence to stop using the cooktop rather than reset it again.