Quick answer
A Samsung oven that will not heat most often has a weak or failed igniter on gas models or a burned-out bake element on electric models. A faulty temperature sensor can stop or limit heating, and settings can too: a control lock, a delay start, or a demo (showroom) mode that runs the display without heat. Check the settings and the manual for demo mode, look at the element, watch the igniter, and note any code. HomeAdvisor puts typical oven repairs at $130–$310. Call (888) 217-0236 to reach an appliance repair company taking calls in your ZIP; the line is answered 24/7.
Follow the short menu, then your 5-digit ZIP. The line goes quiet for a few seconds while it connects; stay on. If it does not connect, call once more: companies taking calls change minute to minute.
Written & reviewed by Marcus ReedIICRC WRT
Reviewed November 4, 2026· Next review May 2027
When a Samsung oven will not heat, start with the settings, because several of them make a working oven look broken. Then look at the parts you can see.
Settings That Stop the Heat
- Control lock: a lock icon on the display. Hold the lock key to release.
- Delay start or timer: a cooking program waiting to begin.
- Demo (showroom) mode: the display and buttons work but nothing heats. Models enable it through a key combination; the manual shows how to turn it off.
- Clock unset after a power outage on some models. See stove not working after a power outage.
Gas Models
The igniter is the most common failure. Set bake and look through the broiler drawer or bottom vent: it should glow orange and light the burner within about a minute and a half. A weak igniter glows but does not draw enough current to open the gas valve. See gas oven won't light.
Electric Models
Look at the bake element at the bottom of the oven, or under the floor panel on hidden-element models. A break, blister or a section that does not glow means it has failed. See oven not heating.
Talk to an appliance repair technician
One call reaches an appliance repair company taking calls in your ZIP, answered 24/7.
Either Type
| What you notice | Likely cause |
|---|---|
| Heats, but not to temperature | Igniter weakening, element failing, or the sensor; see oven temperature not accurate |
| Code on the display | Sensor or control; note the code |
| Broil works, bake does not | Bake element or bake igniter |
| Burners work, oven dead | See oven not working but stove is |
What a Repair Costs
HomeAdvisor puts typical oven repairs at $130–$310, about $200. See oven repair.
The Call
Call when settings are ruled out and the oven still will not heat. Have the model number and any code. (888) 217-0236 is answered 24/7 and connects you to an appliance repair company taking calls in your ZIP for washers, dryers, ovens, stoves, cooktops and freezers. Follow the short menu, enter your 5-digit ZIP and stay on while it connects; if it does not connect, call once more.
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Frequently Asked Questions
Why is my Samsung oven not heating up?
A weak igniter on gas models, a burned-out bake element on electric models, a temperature sensor fault, or a setting such as control lock, delay start or demo mode.
What is demo mode on a Samsung oven?
A showroom setting that runs the display and controls without heating. The manual for your model shows how to turn it off.
Why does my Samsung oven heat slowly?
On gas models, a weakening igniter. On electric, a failing element or the sensor. See our oven temperature guide for a thermometer test.
Sources
Methodology: How we source and verify data · Report an error
Disclaimer: HearthDry is an independent educational resource. This article is for informational purposes only and does not constitute professional, legal, or insurance advice. Consult licensed professionals before making decisions about your property or insurance claims.
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