Home Product SupportIdentify a code

Samsung range or oven · exact code

Samsung range or oven code Underlined u: meaning and exact next steps

Underlined u means an underlined u on the display — Samsung's US and Canadian range articles both list this as a documented display state. This answer applies only to Samsung electric, induction, gas ranges and wall ovens; code meanings and safe customer actions vary by model and fuel type.

Direct answer

On the covered Samsung range or oven, Underlined u means an underlined u on the display — Samsung's US and Canadian range articles both list this as a documented display state. First, note whether anything else is shown alongside it.

Definition versus diagnosis

The display names a detected condition—not an automatically failed part.

KnownThe exact manufacturer definition and operating state shown above.Not yet provenA replacement component, wiring fault or internal cause without controlled isolation.Next evidenceThe first safe observation or test in the ordered checklist below.

What this covers

  • Samsung range or oven covered by the cited source
  • Displayed code or documented alias: Underlined u
  • The exact operating state described by the manufacturer

What it does not cover

  • ×Another product type or original-manufacturer platform
  • ×A visually similar but different code
  • ×Internal live electrical, sealed-system, gas, battery-cell or control-board repair
Try in this order0 of 4 completed

  1. Match every character and the exact product

    Reversible

    Photograph the complete display and product label. This record covers Underlined u on Samsung electric, induction, gas ranges and wall ovens; code meanings and safe customer actions vary by model and fuel type.

  2. Preserve the failure state

    Reversible

    Note whether anything else is shown alongside it. Record the operating stage, recent change and what still works before clearing the message.

  3. Correct only the documented fault domain

    Reversible

    Follow Samsung's own steps for this display on the cited page. Do not borrow a reset or meaning from a similar code, product or model year.

  4. Verify once, then respect the service boundary

    Reversible

    Repeat only the shortest safe action that reaches the original stage. If Underlined u returns, stop repeated resets and use model-specific manufacturer support.

Evidence ledger

Sources behind this answer

Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.

01
Samsung SupportSamsung range and oven error codes

Samsung's US range and wall oven error-code article, read in a rendered browser 2026-08-20. It documents an underlined u, -dE-/-dC-, tESt/tE5t, bAd LinE, C-10, C-24, C-F0, Light, Restart, Completed and Cooktop in use; other codes are directed to Err.

Exact questions

Common follow-ups

What does Underlined u mean on a Samsung range or oven?+

an underlined u on the display — Samsung's US and Canadian range articles both list this as a documented display state.

Can I reset Underlined u without fixing the cause?+

A reset may hide the display temporarily but does not correct the documented fault. Record the code and complete only the safe checks first.

Why is the complete model number required?+

Manufacturers reuse characters across platforms. The model number determines which official table, controls and service boundary apply.

When should I stop?+

This is a display state Samsung documents; it is not by itself a component failure.

Change recordAug. 17, 2026 — Added from the cited first-party Samsung code reference with explicit product scope and stop conditions.
Report a correction
Wrong device or version?

Match the path before repeating the steps.

Match another device