If your oven isn’t heating, the most common culprits are a burned-out bake element (electric ovens) or a weak igniter (gas ovens) — both are visible, testable, and replaceable in under an hour. Below are the six reasons ovens stop heating, how to fix each one, and the point where you should call a pro instead.
Before you troubleshoot anything, do two safety steps: turn the oven off at the wall switch or unplug it, and for an electric oven, switch off its dedicated breaker. Ovens use high voltage and the heating elements stay hot long after the display goes dark. By John Fix, DIY handyman.
1. Burned-Out Bake Element (Electric Ovens)
This is the number-one cause of an electric oven that won’t heat. The bake element is the curved metal bar across the bottom of the oven. When it fails, it usually shows visible damage — a blister, a split, or a bright burn mark — and the oven either stays cold or only the broiler works.
The fix: Let the oven cool fully. Look for a break, bubble, or burned spot on the element. Unscrew the two mounting screws at the back wall, gently pull the element forward, and disconnect the two wires (note which goes where, or snap a photo). Connect a replacement element rated for your model, screw it back in, and test. A new bake element is an inexpensive part and the job takes about 20 minutes.
Call a pro if: the element looks fine but still won’t glow, which points to a wiring or control-board problem rather than the element itself.
2. Weak or Dead Igniter (Gas Ovens)
In a gas oven, the igniter does two jobs: it glows hot to light the gas, and it draws enough current to open the safety gas valve. As igniters age they weaken — they may still glow but no longer pull enough current to open the valve, so you get a glow but no flame and no heat.
The fix: Watch the igniter through the bottom panel when you set the oven to bake. If it glows for more than 90 seconds without the gas lighting, the igniter is weak and needs replacing. Shut off the gas and power, remove the oven floor panel, unscrew the igniter, disconnect it, and install a matching replacement. Don’t touch the new igniter’s element with bare fingers — skin oils shorten its life.
Call a pro if: the igniter never glows at all, or you smell gas. Gas leaks are not a DIY job — leave the house and call your gas utility.
3. Faulty Oven Temperature Sensor
The temperature sensor (a thin metal probe near the top rear of the oven cavity) tells the control board how hot the oven is. If it fails, the oven may not heat, may heat unevenly, or may shut off early thinking it’s already at temperature.
The fix: Most sensors read around 1,080 to 1,100 ohms at room temperature. With the oven unplugged, unscrew the sensor, disconnect it, and check resistance with a multimeter. A reading way off from that range, or no reading at all, means the sensor is bad. Swapping it is a two-screw, one-plug job. Make sure the probe doesn’t touch the oven wall after reinstalling, or readings will be off.
Call a pro if: the sensor tests fine but temperatures are still wildly wrong — the control board may be miscalibrated or failing.
4. Tripped Breaker or Partial Power Loss
Electric ovens run on 240 volts, fed by two “legs” of power. If one leg drops out — a half-tripped breaker, a loose connection, or a worn breaker — the lights and clock may still work while the heating elements get no power. That’s why an oven can look alive but stay stone cold.
The fix: Find the oven’s double-pole breaker in your panel, flip it fully off, then firmly back on. If the oven heats again, great. If it trips again or the problem returns, the breaker or wiring connection is failing.
Call a pro if: the breaker trips repeatedly or feels warm — that’s an electrical fault that needs a licensed electrician, not another reset. A repeatedly tripping circuit can mean a short, which is a fire risk. If you’ve also had flickering or partial outages elsewhere, read our guide on other appliances losing power and heat for related symptoms.
5. Failed Control Board or Thermostat
The electronic control board (or, on older ovens, a mechanical thermostat) tells the oven when to send power to the elements. When it fails, the oven may not respond to bake commands, throw an error code, or heat erratically.
The fix: Check your display for an error code and look it up in your owner’s manual — many codes point straight to the board or sensor. If the element, igniter, and sensor all test good but the oven still won’t heat, the control board is the likely suspect. Replacing it is possible for a confident DIYer, but boards are pricey and model-specific.
Call a pro if: you’re not comfortable matching and installing a control board, or if a new board doesn’t fix it — there may be a deeper wiring issue.
6. Wrong Settings, Delay Bake, or Lockout Mode
Sometimes the oven is fine and a setting is the problem. A delay-bake or timer was set, the oven is in a self-clean lockout, or it’s in Sabbath mode — all of which can leave it cold when you expect heat. A child-lock can also disable the controls.
The fix: Cancel any timer or delay-start, make sure the oven isn’t mid self-clean cycle (the door locks during cleaning), and check the manual for how to exit Sabbath or lock modes — usually a press-and-hold of a specific button. A quick power cycle at the breaker clears most stuck control states.
Call a pro if: the controls won’t respond even after a reset, which loops back to a possible control-board fault.
Frequently Asked Questions
Why is my oven not heating but the broiler still works?
That almost always means a failed bake element while the separate broil element is fine. Inspect the lower bake element for breaks or burns and replace it.
Why does my oven heat but not reach the set temperature?
A weak heating element, a drifting temperature sensor, or a miscalibrated control board are the usual causes. Test the sensor’s resistance first — it’s the cheapest fix.
Is it safe to use an oven that isn’t heating right?
If it’s an electric oven and you only have a heat problem, it’s generally safe to troubleshoot once powered off. If it’s gas and you smell gas at any point, stop, ventilate, and call your gas utility — never light it manually.
How much does an oven heating element cost to replace?
The part itself is usually modest, and replacing a bake element or igniter yourself takes under an hour with a screwdriver. A professional repair runs higher because of the labor and service call.