Appliance Help HQ
Menu
ENEnglishESEspañolPT-BRPortuguês

Source-backed error-code guide

Reviewed

Samsung Range tESt / tE5t Error Code

tESt or tE5t indicates Demo Mode rather than a component diagnosis. The exact owner manual is required because the controls used to exit this mode differ by model.

Applies to Samsung range or wall oven

What the appliance detected

Detected condition

The range is in Demo Mode, so the oven and electric cooktop will not heat. Samsung notes that gas cooktops may still ignite.

What may contribute

Possible causes

  • Demo Mode is enabled on the appliance.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Confirm the display and exact model

    • Photograph or write down whether the display shows tESt or tE5t.
    • Find the full model number and the Demo Mode section in its owner manual.

  2. Use only the model-specific control steps

    • Follow the exact owner-manual instructions to turn off Demo Mode.
    • Do not guess at button combinations or apply steps from a different model.

  3. Treat gas cooktops as capable of ignition

    • Samsung notes that a gas cooktop may still ignite while the range is in Demo Mode.
    • Keep burner controls off and do not use Demo Mode as a safety lockout.

  4. Escalate if the documented steps do not work

    • Turn the appliance off and back on with its Power button once after completing the exact manual steps.
    • If the display remains, turn the circuit breaker off for 30 seconds and restore it once. If tESt or tE5t remains, request support rather than repeating resets.

Actions not recommended

  • Do not remove panels, alter wiring, bypass controls, or guess at service-mode or Demo Mode button combinations.
  • Do not assume a gas cooktop cannot ignite because the oven and electric cooktop will not heat.
  • Do not repeatedly reset the appliance if model-specific instructions do not exit Demo Mode.

When to stop and request service

  • Request Samsung support if the exact owner-manual steps and the single escalation sequence do not exit Demo Mode.
  • Stop if controls behave differently from the manual or if internal access would be required.
  • Seek urgent help for smoke, sparking, a burning smell, uncontrolled heating, visible wiring damage, repeated breaker trips, abnormal heat, or a gas odor.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: August 12, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by Samsung.

Think this information has changed? Report a correction.