What U u Means
Induction Cooktop: KitchenAid publishes this symbol - printed as U and u - with a single explanation. It appears if the pot is not suitable for induction cooking, is not positioned correctly, or is not of an appropriate size for the cooking zone selected, and if no pot is detected within thirty seconds of making the selection, the cooking zone switches off. That thirty-second timeout is the practical detail: the cooktop is not sulking indefinitely, it is giving you half a minute to put something suitable on the zone and then standing down so a selected zone is not left waiting.
Common Causes of U u
- A pan that is not ferromagnetic and so cannot be detected at all
- A pan too small for the zone or sitting off-centre
- No pan placed within the thirty seconds the cooktop allows after selection
🔧 One Safe Check You Can Try
Put a suitable pan on the zone within thirty seconds of selecting it. Suitable means magnetic - a magnet should grip the base firmly - reasonably matched in diameter to the zone, and sitting centred on it rather than pushed to one side. If the zone has already switched itself off, select it again and place the pan promptly. Trying the same pan on a different zone, and a known-good pan on the same zone, separates a cookware problem from a cooktop one in under a minute.
⚠ Why You Shouldn't Go Further Than That
- In the ordinary case this is the cooktop declining to energize a zone with nothing usable on it, which is the behaviour that stops an empty zone being left live.
- If a known-good induction pan reads as undetected on one zone but works on the others, the detection for that coil is the question, and the coils sit under bonded glass.
- Pans with only part of the base ferromagnetic can flicker between detected and not, which looks like a cooktop fault and is not one.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.