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LG range or oven · exact code

LG range or oven code Sb, 5b: meaning and exact next steps

Sb, 5b means the unit is in Sabbath Mode, and is explicit that this is NOT an error code — LG's own wording. While active, the temperature cannot be changed and the timer, light and alarm functions are disabled. This answer applies only to LG electric and gas ranges and wall ovens. LG documents radiant-cooktop codes separately in the same article; griddle, induction and sous-vide codes apply only to models with those features.

Direct answer

On the covered LG range or oven, Sb, 5b means the unit is in Sabbath Mode, and is explicit that this is NOT an error code — LG's own wording. While active, the temperature cannot be changed and the timer, light and alarm functions are disabled. First, check whether Sabbath Mode was enabled deliberately.

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

  • LG range or oven covered by the cited source
  • Displayed code or documented alias: Sb, 5b
  • 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 Sb, 5b on LG electric and gas ranges and wall ovens. LG documents radiant-cooktop codes separately in the same article; griddle, induction and sous-vide codes apply only to models with those features.

  2. Preserve the failure state

    Reversible

    Check whether Sabbath Mode was enabled deliberately. Record the operating stage, recent change and what still works before clearing the message.

  3. Correct only the documented fault domain

    Reversible

    Exit Sabbath Mode as the model's manual directs. Nothing is faulty. 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 Sb, 5b 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
LG USA SupportLG Range — Error Codes List

LG's own range error-code list, with LG's wording for each code and its resolution sequence.

Exact questions

Common follow-ups

What does Sb, 5b mean on a LG range or oven?+

the unit is in Sabbath Mode, and is explicit that this is NOT an error code — LG's own wording. While active, the temperature cannot be changed and the timer, light and alarm functions are disabled.

Can I reset Sb, 5b 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?+

There is nothing to service. LG notes the oven light stays as it was when Sabbath mode was entered.

Change recordAug. 17, 2026 — Added from the cited first-party LG code reference with explicit product scope and stop conditions.
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