--- title: "Induction cooktop not recognizing the pan" description: "Bosch induction cooktop not recognizing the pan — a zone that beeps and gives up, shows a pan symbol, or heats one pan and not another." url: "https://esbosch.djwp.xyz/symptoms/cooktop-not-recognizing-pan/" date_modified: "2026-08-21" Appliance type: "Cooktops & rangetops, Ranges" --- # Induction cooktop not recognizing the pan Symptom # Bosch induction cooktop not recognizing the pan A zone that beeps and gives up, shows a pan symbol, or heats one pan and not another. On induction the cookware is part of the appliance, and a good share of these calls end with a magnet test rather than a repair. - **From $95** diagnostic, credited to the repair - **59** cities and neighborhoods covered - **OEM** parts available on order - **In writing** the price, before anything is opened ## Book a diagnostic visit Your model number and a line about what it is doing is enough to get started. Your details stay private. No spam, ever. Five ordinary causes ## What this usually turns out to be Cheapest and commonest first, which is also the order we check them in. They sit hundreds of dollars apart, and only the unit settles which one is yours. - The pan is not ferrous Induction works by inducing current in the base. Aluminum, copper and most stainless steel without a magnetic layer simply do not respond. A fridge magnet on the base settles it in a second. ### The pan is not ferrous Induction works by inducing current in the base. Aluminum, copper and most stainless steel without a magnetic layer simply do not respond. A fridge magnet on the base settles it in a second. - The base is too small or warped A pan smaller than the zone’s minimum, or one that has bowed and only touches at the rim, will not be detected reliably. ### The base is too small or warped A pan smaller than the zone’s minimum, or one that has bowed and only touches at the rim, will not be detected reliably. - The pan is off-center Or straddling two zones on a flexible cooking area. Both produce intermittent detection that looks like a problem with the cooktop. ### The pan is off-center Or straddling two zones on a flexible cooking area. Both produce intermittent detection that looks like a problem with the cooktop. - Supply voltage out of range Has its own published code. It is a building or utility question, and it is worth reading before booking anything. [ Cooktop & induction repair from $210 ](https://esbosch.djwp.xyz/services/cooktop-and-induction-repair/) ### Supply voltage out of range Has its own published code. It is a building or utility question, and it is worth reading before booking anything. - The coil or its module When one zone never detects anything while the others are fine. That is a real failure and the expensive half of this appliance. [ Cooktop & induction repair from $210 ](https://esbosch.djwp.xyz/services/cooktop-and-induction-repair/) ### The coil or its module When one zone never detects anything while the others are fine. That is a real failure and the expensive half of this appliance. In five minutes ## Before you call anybody None of it needs tools, and all of it makes the visit shorter. - 01 Put a magnet on the base of the pan If it does not stick firmly, the pan will not work and the cooktop is fine. This is the whole answer surprisingly often. ### Put a magnet on the base of the pan If it does not stick firmly, the pan will not work and the cooktop is fine. This is the whole answer surprisingly often. - 02 Try the same pan on every zone Works everywhere except one zone: that zone. Fails everywhere: the pan. ### Try the same pan on every zone Works everywhere except one zone: that zone. Fails everywhere: the pan. - 03 Center the pan And check the base sits flat — put it on a counter and press each edge. A rocking pan is a bowed pan. ### Center the pan And check the base sits flat — put it on a counter and press each edge. A rocking pan is a bowed pan. - 04 Photograph any code Particularly the voltage one, which changes who you should be calling. ### Photograph any code Particularly the voltage one, which changes who you should be calling. How it shows up ## What people describe when they call - “Beeps and switches off after a few seconds” - “Works with one pan, not another” - “A pan symbol on the display” Two shortcuts ## Narrow it down before anybody arrives A description of the behaviour leaves a few possible causes. A code names the subsystem, and the model number says which parts to bring. Either one shortens the visit; both together usually settle it. If the display is showing something - [ U400 Supply voltage ](https://esbosch.djwp.xyz/error-codes/error-code-u400/) - [ E9011 Wired incorrectly ](https://esbosch.djwp.xyz/error-codes/error-code-e9011/) Photograph it before it clears — codes do not wait. [ Search the full code list ](https://esbosch.djwp.xyz/error-codes/) If there is no code at all The data plate is inside the cabinet, upper left wall or behind the grille. [ All models ](https://esbosch.djwp.xyz/models/) In more detail ## About Bosch induction cooktop not recognizing the pan ### The fastest diagnosis is the code If there is a code about supply voltage, stop — that one is about the building rather than the cooktop, and no part inside the appliance will improve it. Everything else on this page starts with the pan. ### The cookware is part of the appliance An induction zone works by inducing a current in the base of the pan, and the pan has to be able to carry one. Aluminum, copper and plenty of stainless steel cannot. A fridge magnet on the base of the pan is the entire test: firm grip means it will work, weak or none means it will not, and no repair changes that. ### One zone or all of them Take a pan you know works and try every zone. If one zone alone refuses it, that zone’s coil or module is the question. If every zone refuses every pan, and there is a voltage code on the display, the answer is upstream of the cooktop entirely. This article is based on: - Official manufacturer documentation - Internal repair procedures - Technician repair history - Company quality standards Before you book ## Questions about bosch induction cooktop not recognizing the pan Pans bow over time, especially thin ones. A base that no longer sits flat loses contact and detection with it. Put it on a flat counter and press the edges. Some stainless is magnetic and some is not — it depends on the alloy and whether the base has a magnetic disc in it. The magnet test is the only reliable way to know. The supply voltage sitting outside the range the cooktop will run in. That is your building or your utility, not the appliance, and it is worth establishing before a repair is booked. 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