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An induction cooktop only heats pans that its zone can sense, so a cooktop that does not recognize cookware starts as a pan question: test the base with a magnet, center the pan over the zone, and confirm it is large enough. If a magnetic, correctly sized pan still gets no response on any zone, the control or power supply needs a technician.
A cooktop that ignores the pan on it is annoying, and the symptom alone does not show a failed part. Start with checks that are safe and repeatable, which will also help a Kenmore technician if you end up arranging a visit.
Ordinary care and work that calls for testing or taking the unit apart are different jobs. Never defeat a safety switch, lock, or error message to keep cooking, and a few written observations today will speed up any diagnosis later.
Start with the simple conditions
Hold a magnet to the bottom of the pan, put the pan in the middle of its zone, and compare its diameter with the zone guidance in the manual. Do this with the cooktop left as installed, with no force on panels or controls. If anything changes after a small adjustment, try one regular heating run before deciding. Swap the pan to another zone, and put a different magnetic pan on the first, so you can tell whether pan or cooktop is the issue.
Induction warms magnetic cookware directly, which means a nonmagnetic pan, a warped base, a very small pan, or a control lock can pass for a cooktop fault. Notice whether it happens with every pan, only one zone, or only after cooking a while; that tells you more than switching the zone off and on repeatedly.
| What you see | Probable cause | Safe check |
|---|---|---|
| Pan not sensed | Base is not magnetic | Try the magnet |
| Zone turns itself off | Pan too small | Center a bigger pan |
| Every zone fails | Control or power problem | Book a diagnosis |
How does an induction zone sense a pan?
Zones on the Kenmore induction range described in the use-and-care guide warm only magnetic cookware; sticking a magnet to the pan base is the easy check, and certain stainless steel pans do not pass. No red glow shows on the zones, and residual heat can keep the glass hot after the pan is removed.
When a zone is turned on and no pan is detected, the same guide says the display flashes the last power level, and a zone that is not corrected turns itself off after three minutes. That flashing is the cooktop reporting that it sees nothing to heat, not necessarily a fault.
Safe checks that protect the appliance
Look up controls, access points, and maintenance timing for your cooktop in its use-and-care manual. Touch only what the manual treats as user-serviceable, use cleaning products it recommends, and make sure every removable piece goes back the way it was meant to sit.
Before heating again, clear the glass of anything on it, make sure the pan sits flat on the zone, and keep the load modest. Repeated resets are a poor habit because they can hide an intermittent fault and leave heat where it should not be.
- Save any message from the display before clearing it.
- Check the visible glass, cord, and plug without disturbing electrical connections.
- Limit yourself to one measured test, not a run of repeated tries.
Fine to do
- Cook with magnetic pans
- Center the pan on the zone
- See whether the controls are locked
Technician only
- Take the cooktop apart
- Cook on damaged glass
- Test internal power circuits
How do pan fit and flatness affect induction heating?
The guide lists causes for no heating: a non-magnetic base, a pan that is not centered, a pan too small for the zone, a warped or curved bottom, and a pan resting on the cooktop edge. It recommends pans that sit no more than half an inch beyond the longer lines for the zone, are flat, make full contact with the glass, and do not touch the metal edges.
These details explain why a pan that works on one zone fails on another. A pan that is slightly warped from heat can lose contact and drop out. Never let cookware boil dry. People with pacemakers are advised by the guide to use caution near an induction cooktop. Opening the cooktop or testing the internal power circuits is for a technician only.
Know when the symptom needs diagnosis
Where the basic checks leave the symptom as it was, owner-level steps are used up. Internal wiring, power circuits, control boards, gas connections, refrigerant lines, motors, and pumps need correct test equipment and a technician who can make the repair safely.
Set up a service visit promptly if the cooktop is deteriorating, trips a breaker, shows leaking near electrical parts, smells hot or burnt, makes an unfamiliar grinding noise, or won’t complete normal operation. Leave it off once it displays a safety warning.
What to tell the technician
Pass along the model number, the exact behavior, when it first appeared, the zone and power settings you used, and what the safe checks showed. A photo of any displayed code is welcome, but never open the cooktop to get one.
Noticing details does not repair a cooktop, yet it is the sensible first move. Take care of the simple conditions, keep any code you saw, and bring in a specialist Kenmore technician for electrical, gas, sealed-system, or internal mechanical work.
How do I know if my pan will work on induction?
Hold a magnet to the base of the pan. The use-and-care guide for one Kenmore induction range says that if the magnet sticks, the pan is suitable, and that some stainless steel pans will not pass.
Why does the zone switch off after a few minutes?
The guide says a zone with no cookware detected turns off after three minutes. A pan that is off-center, too small, or not flat can cause that, so recheck the fit.
When is it a cooktop problem rather than a pan problem?
If magnetic, flat, correctly sized pans fail on every zone, or the display and controls respond oddly, the cause may be in the controls or power supply and needs diagnosis.