The touch strip along the front of a black glass cooktop set into a white counter, a small key symbol lit beside the power button and every zone dark.

Samsung induction cooktop
showing Underlined u

The underlined u means the zone does not detect suitable cookware: nothing is there, the pan is not magnetic, or it is too small.

(844) 252-4077

Mon–Sat, 8am–8pm

  • Mode, not a failure
  • No repair needed
  • Source: Samsung

Book a visit

Three short steps, about a minute.

or call (844) 252-4077

Before you book,
in this order.

Each step comes from Samsung's own guidance for Underlined u on its cooktops. Follow it to the end: the last card says whether this is a visit.

01

Use a magnetic pan that matches the zone size.

02

Hold a magnet to the pan base; if it does not stick, that pan will not work on this induction zone.

03

If the symbol appears with a known-good pan, book a visit.

Cleared?

The cooktop came right without a new part. If the same message returns while a zone or burner is on, or the top shuts itself down again mid-meal, treat it as a fresh problem and book it.

What not to do

The underlined u is not a failed coil. It also does not mean the glass is damaged; the zone simply found no cookware it can heat.

What you may
notice with it.

The cooktop problems Underlined u tends to arrive with. Answer these at the cooktop before anyone is booked.

All problems

No repair indicated

Nothing to repair.

A state the cooktop was put in, or one it picked deliberately — a child lock, a demo mode that lights the keys but heats nothing, a residual-heat letter over a zone that is still warm, a prompt that no pan has been found. Nothing has broken and no part is called for.

In Samsung's own words

The cookware is unsuitable or too small or no cookware has been placed on the cooking zone.
Samsung NZ30A3060UK induction cooktop user manual (English), Information codes Samsung NZ30A3060UK induction cooktop user manual (English), Information codes Samsung support: meaning of the error codes on your cooktop

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Printed in the information code tables of Samsung's manuals for the NZ30A3060UK and NZ30K7880US induction cooktops (both carry a U.S.A. warranty page). Samsung's support article on cooktop codes names it the pan detection error.

Samsung Underlined u cooktop repair,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas
A parent and a teenager stirring a pan together over a gas cooktop set into a kitchen island
For the heart of your home.

Questions
about Underlined u.

Can I clear Underlined u myself?
Use a magnetic pan that matches the zone size.
Why does my Samsung show an underlined u with my stainless pan?
Some stainless pans are not magnetic. If a magnet will not stick to the base, induction cannot heat it.
Does the underlined u clear by itself?
It goes away when a suitable pan is detected, or the zone turns off after 30 seconds.
Why does the underlined u on my Samsung turn the zone off after 30 seconds?
Samsung's manual says the zone switches off 30 seconds after it finds no suitable cookware. That is a safety step, not a sign of damage. Set a suitable pan on the zone and turn it on again.

Back to your everyday

Still showing Underlined u?

Book with the code copied exactly, the full model number, and whether there is any smell of gas or burning — with a code in hand, that is where the diagnosis starts.

(844) 252-4077 Schedule a repair