KitchenAid Induction Cooktop Performance Boost Flashing: power levels change between zones

What Performance Boost Flashing - Power Level Changes means

On KitchenAid induction cooktops such as the KICU509 and KICU569 series, a flashing Performance Boost indicator together with shifting power levels means more than one zone has been set to Performance Boost. The boost function can run only one cooking area inside a cooktop zone, so when both areas of the same zone ask for it, the cooktop adjusts the power levels itself. You see the boost light blink and the heat output change without your input.

Common causes of Performance Boost Flashing - Power Level Changes

Both cooking areas of one zone were set to Performance Boost at the same time.
Boost was selected on a second area while the first area was still boosting.
A pan is sitting across two neighboring areas, so the cooktop treats the request as shared.

✓ One safe check you can try

1. Look at which areas show the flashing boost indicator. 2. Turn one of the two areas in that zone back to a normal power level. 3. Leave Performance Boost on only one cooking area per zone. 4. Center each pan over a single area. 5. If the indicator keeps flashing with only one boost selected, turn the cooktop off for a minute and try again.

! Why to stop there

The cooktop is sharing power on purpose, so no part has worn out.
Setting one area back to a normal level usually ends the flashing.
Only a stubborn flashing light with a single boost would call for a technician.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Performance Boost Flashing - Power Level ChangesPerformance Boost Flashing - Power Level Changes questions

Why do my power levels change when I use boost?

The cooktop allows boost on only one cooking area per zone. If you select it on both areas of the same zone, it changes the levels to stay within that limit, which is why the heat does not match what you set.

Is the flashing boost light a failure?

No, it is a notice about your selection. Set the second area to a regular level and the indicator should stop blinking. It points to a settings conflict, not damaged parts.

When should I call you for this?

Call if the flashing returns even though only one area per zone is on boost, or if the levels still drift. We inspect the control and give a written price first, and our work carries a 30-day warranty.