--- title: "Induction cooktop will not recognize the pan" description: "Whirlpool induction cooktop will not recognize the pan — induction heats the pan, not the surface, so a pan the cooktop cannot work with is not a problem the…" url: "https://whirlpoolmiami.support/symptoms/induction-cooktop-not-recognizing-pan/" date_modified: "2026-09-06" Appliance type: "Cooktops" --- # Whirlpool induction cooktop will not recognize the pan ### The magnet test, and then the position Hold a fridge magnet against the base of the pan. If it grips firmly, the pan is induction cookware and the problem is elsewhere; if it barely holds or falls off, that pan will never work on this cooktop and nothing is wrong with the appliance. Then check the size and the position: the base needs to cover most of the marked zone and sit centered on it. A small saucepan on a large zone, or a pan pushed off to one side, produces exactly the same symbol as an unsuitable pan. ### What it usually means, by the kind of machine Whirlpool sells one appliance in several forms — a top-loader with an agitator and one without, a front-loader, a stacked pair, a laundry tower and an all-in-one; a vented dryer, a ventless one and a heat pump — and the same behavior points at different things on each of them. A top-load washer has no drain pump filter to open and a front-loader does, which is the whole first hour of the same complaint on two machines. - **Induction cooktop** — Each zone has a coil sized for a range of pan diameters. A small pan on a large zone is a genuine mismatch rather than a defect. - **Induction range** — Same coils over an oven. A code that appears on the cooktop while the oven is normal still belongs to the cooktop control. - **Mixed cookware** — Stainless with an aluminum core, copper and most glass will not work at all. Cast iron and magnetic stainless will. ### The honest part of this page Whirlpool publishes 40 code pages for its induction cooktops, and for the F codes among them the published content is a reset procedure and an instruction to report the exact code when arranging service. The meaning is not published. We are not going to invent one. What that changes in practice is the order of work: on an induction cooktop showing an F code, the diagnosis is done at the appliance with measurements, and the code is used to confirm what was measured rather than to shortcut it. U u is the exception, and it is the one code on this branch where the maker states plainly what it means. ### Induction in a South Florida kitchen These cooktops have electronics and a cooling fan directly under the glass, and they draw air from the cabinet below. A cabinet packed solid with pans, or a run with no ventilation gap, runs those electronics hotter than the design intends — and in a kitchen that is already at 80 degrees for much of the year, that margin matters. Where we find an induction cooktop shutting zones down under load, the airflow under it is one of the first things checked. The pan is not induction cookware Whirlpool's own first explanation for U u. The magnet test settles it in a second and costs nothing. The pan is the wrong size for the zone Too small a base on too large a coil. The cooktop cannot see enough metal to work with. The pan is off center Also in the maker's wording. Half a pan over the zone is not a pan as far as the coil is concerned. A warped base An old pan that no longer sits flat lifts away from the glass in the middle. It worked for years and then stopped, which makes it a confusing one. The zone itself If a known-good pan works on every zone but one, the cooktop is the problem and that is a real repair. Do the magnet test on every pan you use Whole sets fail it. This one test explains most induction calls in the first year of ownership. Move the pan to a different zone Works elsewhere, fails on one zone — that is the cooktop. Fails everywhere — that is the pan. Check the base is flat Put a straight edge across it. A rocking pan on a glass surface will not couple properly. Write down any F code exactly F0 E6, F7 E5, F0 EC and the rest are real published entries even where the meaning is not published, and the exact characters matter. The zone beeps, shows a symbol and switches itself off What it usually means U u is a message about the pan, and the maker says so in as many words A magnet on the base of the pan settles the suitability question in one second Whirlpool's induction F codes publish the reset and not the meaning — nobody should pretend otherwise The magnet test, and then the position Hold a fridge magnet against the base of the pan. If it grips firmly, the pan is induction cookware and the problem is elsewhere; if it barely holds or falls off, that pan will never work on this cooktop and nothing is wrong with the appliance. Then check the size and the position: the base needs to cover most of the marked zone and sit centered on it. A small saucepan on a large zone, or a pan pushed off to one side, produces exactly the same symbol as an unsuitable pan. What it usually means, by the kind of machine Whirlpool sells one appliance in several forms — a top-loader with an agitator and one without, a front-loader, a stacked pair, a laundry tower and an all-in-one; a vented dryer, a ventless one and a heat pump — and the same behavior points at different things on each of them. A top-load washer has no drain pump filter to open and a front-loader does, which is the whole first hour of the same complaint on two machines. Induction cooktop — Each zone has a coil sized for a range of pan diameters. A small pan on a large zone is a genuine mismatch rather than a defect. Induction range — Same coils over an oven. A code that appears on the cooktop while the oven is normal still belongs to the cooktop control. Mixed cookware — Stainless with an aluminum core, copper and most glass will not work at all. Cast iron and magnetic stainless will. The honest part of this page Whirlpool publishes 40 code pages for its induction cooktops, and for the F codes among them the published content is a reset procedure and an instruction to report the exact code when arranging service. The meaning is not published. We are not going to invent one. What that changes in practice is the order of work: on an induction cooktop showing an F code, the diagnosis is done at the appliance with measurements, and the code is used to confirm what was measured rather than to shortcut it. U u is the exception, and it is the one code on this branch where the maker states plainly what it means. Induction in a South Florida kitchen These cooktops have electronics and a cooling fan directly under the glass, and they draw air from the cabinet below. A cabinet packed solid with pans, or a run with no ventilation gap, runs those electronics hotter than the design intends — and in a kitchen that is already at 80 degrees for much of the year, that margin matters. Where we find an induction cooktop shutting zones down under load, the airflow under it is one of the first things checked. ### The pan worked last week. Then look at the base for warping and at the position on the zone before anything else. A pan that has been overheated dry can lift in the middle and stop coupling, and it looks identical to the pan that worked. ### It shows an F code, not U u. Write it down exactly as it appears and book it. Whirlpool's own instruction for these is to power the cooktop down for a minute, and if it returns, to report the specific code — which is a fair summary of what we would tell you too. --- **[Read full article: Induction cooktop will not recognize the pan](https://whirlpoolmiami.support/symptoms/induction-cooktop-not-recognizing-pan/)**