Samsung Oven / Range tESt error code
- Oven / Range
On Samsung oven / ranges, error tESt indicates: Demo mode is on — the oven and electric cooktop will not heat. Some displays show this as Demo or tE5t. Start with a 5-minute power reset at the breaker, then follow the oven / range-specific checks below before ordering replacement parts for tESt.
Reviewed August 2025 · sources below
Safe to keep using?
No safety issue
This is a status or lock code, not a hardware fault.
How to fix tESt
- Unplug the oven / range or turn off power at the breaker before inspecting any components.
- Reset Samsung tESt: leave power off for 5 minutes, restore power, then restart. Confirm whether tESt returns.
- Check the most common cause for tESt: Demo mode is on — the oven and electric cooktop will not heat.
- Inspect hoses, connections, and visible wiring for damage, clogs, or loose fittings.
- If a reset and basic checks don't clear the code, use our lookup tool for AI-powered diagnosis or contact a qualified technician.
- Reassemble, restore power, and run a test cycle. If tESt returns, the faulty component likely needs replacement.
Call a pro when: Call a technician if you smell burning, see sparking, hear grinding from the motor, or the code returns after replacing the suspected part.
Next step
Still having trouble after the code fix?
This code is usually a status or maintenance notice, not proof of a failed part. Try the steps above first; then describe what still isn't working.
Free guided checks · No account required · Don’t open live electrical, gas, or refrigerant equipment
What tESt means
Demo mode is on — the oven and electric cooktop will not heat.
Likely causes
Demo mode is on — the oven and electric cooktop will not heat.
Check: Press Power or Start/Pause to clear the code, then restart the cycle.
Est. cost: $0–$0
Demo mode blocks heating or full cycles until disabled in the settings menu.
Check: Follow the manual steps to exit demo/Sabbath mode, then power-cycle if the code persists.
Est. cost: $0–$0
Guided repair checklist
Complete the safe checks one at a time. Progress is saved for this browser so you can continue later.
0 of 6 checks recorded
Recommended next action
Start with this check before considering replacement parts.
Check 1 of 6
Unplug the oven / range or turn off power at the breaker before inspecting any components.
Did the repair resolve the issue?
Restoring repair progress…
Questions about tESt
What does tESt error code mean on a Samsung oven / range?
Demo mode is on — the oven and electric cooktop will not heat.
How do I reset Samsung oven / range tESt?
Unplug the oven / range or switch it off at the breaker for 5 minutes, then restore power and restart. A reset clears a stored tESt after a glitch, but the code will return if the underlying fault is still present.
What part do I need for Samsung tESt?
Not always — some tESt errors are caused by user-fixable issues like clogs or unbalanced loads. Try the troubleshooting steps first.
Can I fix Samsung error tESt myself?
Many tESt errors can be fixed DIY if you're comfortable with basic tools. Start with the reset and steps above. If the issue involves electrical components or the code returns after replacing parts, call a professional.
Samsung tESt on specific models
Other Samsung Oven / Range codes
Prevent this problem next time
- Use lock features only when needed
- Avoid cutting power mid-cycle
Sources
Manufacturer meaning
Demo mode is on — the oven and electric cooktop will not heat.
FixApplianceCode guidance
Clear the tESt status code and restart. No replacement part is needed.
Source type: Editorial
Source: FixApplianceCode status-code guidance
Last reviewed: 2026-10-24
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
As an Amazon Associate I earn from qualifying purchases. Some links may also earn other retailer commissions, at no additional cost to you. Affiliate disclosure