Samsung Induction Cooktop Not Detecting Cookware: Checks in Order

When a Samsung induction cooktop not detecting cookware leaves a zone cold, the cause is most often the pan rather than the cooktop. Our page for the Samsung cooktop U-10 error describes it as the induction zone being unable to detect cookware, rates it low severity and says the code can be reset. This guide walks the checks in the order that finds the cause fastest.

What you see	Most likely cause	First check
U-10 with one pan, others work	That pan is not induction-compatible	Try a pan you know works
U-10 with a small pan	Pan too small or off-center for the zone	Center a larger pan on the ring
Zone worked before with the same pan	Zone or coil fault	Test two other pans on that zone
U-10 with several proven pans	Coil, sensor circuit or board	Stop and book a diagnostic

What Does U-10 Mean on a Samsung Cooktop?

U-10 means the induction zone cannot detect a pan on it, so it does not start heating. The code page treats it as low severity and a sometimes-DIY fix, which fits what induction does: the zone heats only when it senses cookware that responds to its magnetic field.

That is why the symptom can look like a dead burner when nothing is wrong with the cooktop. An induction zone with no suitable pan is meant to stay off, so the first job is to prove the pan, not to suspect the glass.

How Do I Know If My Pan Works on Induction?

A pan works on induction when a magnet sticks firmly to its base. Cast iron and many stainless steel pans pass; aluminum, copper and glass do not, unless the base has a magnetic layer. This is general induction behavior, so check your owner's manual for Samsung's own guidance on your model.

• Use the magnet test. A magnet that holds on the bottom of the pan is a good sign.
• Look for the induction symbol. Many pans carry it on the base or the packaging.
• Try a different pan. A pan that heats on one zone and not another points at the zone.
• Check the base is flat. A warped base loses contact with the glass and may not be detected.

Pan Size and Position

Yes, a pan that is too small or off-center for the zone can fail detection even if the metal is right. Induction zones detect cookware over the ring marked on the glass, and a base well under that ring may not register.

1. Match the pan to the ring. Use a base close to the diameter drawn on the glass.
2. Center it. Slide the pan until it sits evenly over the ring.
3. Wipe the glass and the base. Dried spills or a dirty base can interfere with contact.
4. Remove anything between pan and glass. A mat, a trivet or a liner changes detection.

Our guide to Samsung cooktop maintenance shows how to keep the glass clean so contact stays reliable.

Induction behaves differently from gas or radiant heat, and that is why the symptom surprises people. The zone does not glow or warm up by itself; it creates heat in the pan, and without a pan that responds, there is nothing for it to do. A cold zone with a message is therefore the cooktop working as designed, not failing.

Cookware that has worked for years can stop being detected after a change. A pan that has warped from heat, a base that has worn thin or a new pan with an aluminum core and no magnetic layer all change the result. Think about what changed lately before you blame the zone.

Can I Reset U-10 and Try Again?

Yes, the code page says the code can be reset, and in most cases the next step is simply to put a suitable pan on the zone. Turn the zone off, wait a moment, place a proven induction pan and try again.

If the same pan works on another zone and fails on this one, note that. It is the clearest sign that the problem is the zone and not the pan, and it is what the technician will want to hear.

• Turn the zone off first. Then restart it with the pan in place.
• Try two other pans. If they fail too, the zone is the suspect.
• Test another zone. A pan that works there clears the pan.
• Write down what you tried. It shortens the visit.

The glass deserves a look. The code page lists damage or delamination above the coil as something that can affect detection, so check the surface for chips, cracks or a cloudy patch over the zone. Do not keep cooking on glass that is cracked; switch the cooktop off at the breaker and book a visit.

It also helps to know that low severity does not mean ignore. U-10 is a mild message with a simple cause most of the time, but when it repeats with proven cookware it tells you the sensing side is not working, and that needs a technician.

When Should I Call a Technician?

Call when U-10 appears with several pieces of confirmed induction-compatible cookware, or on a zone that previously worked with the same pan. The code page lists both as reasons to stop immediately.

It names three things for a technician to check: the induction coil or its sensor circuit, a control board relay for the affected zone, and the glass surface, since damage or delamination above the coil can affect detection. None of these is a homeowner repair, and the page asks you not to remove panels.

A cooktop that shows a different message needs a different guide. The F-ER induction power supply page covers a different fault, and the O-10 overheat page covers shutoff from heat.

Before the visit, collect the facts that matter: which zone, which pans you tried, whether the zone ever worked with them and whether any other message appeared. Those four answers let the technician arrive with a plan and, if a part is needed, with the right one.

What Happens at the Visit

The technician tests with known cookware, then checks the coil and the zone circuit, and tells you which part is at fault. The diagnostic starts from $89, and the final price is confirmed after the on-site diagnosis, with a written estimate before any work begins.

Our Samsung cooktop repair service covers the coil, the relay and the glass. You can book a visit or tell us which zone fails and which pans you tried, so the visit starts at the right place.