Lower oven is completely cold
The display responds, but after several minutes the lower cavity stays room temperature.
Start here: Start with settings, door closure, and whether the lower heat source does anything at all.
Oven Heating Problem
Double Oven Lower Not Heating
Direct answer: When only the lower oven in a double oven will not heat, the usual causes are the wrong mode selected, a door that is not fully closing, a failed lower oven heating element on electric models, or a weak lower oven igniter on gas models.
Most likely: Start by proving the lower cavity is actually being asked to bake, then watch what happens in the first few minutes. A lower bake element that stays dark and cold, or a gas igniter that glows but never lights the burner, is a much stronger clue than guessing at the control.
Treat the upper and lower ovens like two separate machines that happen to share a cabinet. If the upper oven works and the lower one does not, that helps narrow the problem fast. Reality check: a lot of 'not heating' calls turn out to be a mode or timer setting issue on the lower cavity. Common wrong move: replacing parts before checking whether the lower oven is in Bake, not Broil, Delay Start, Sabbath, or a timed mode.
Don’t start with: Do not start by ordering a control board. On this symptom, the lower oven heat source and sensor are more common than the control, and the control is a poor first guess.
If the lower oven shows a temperature but never gets warm,check the lower cavity settings and then watch for element heat or igniter glow.
If the lower oven gets a little warm but cannot reach set temperature,suspect a weak lower oven igniter, a partially failed lower bake element, or a bad lower oven sensor.
Last reviewed: 2026-04-05
What the lower oven is doing tells you where to start
Lower oven warms a little but never reaches temperature
Food takes much longer than normal and the cavity feels only mildly hot.
Start here: Look for a weak gas igniter, a damaged lower bake element, or a sensor reading problem.
Lower oven broils but will not bake
The top heat works in the lower cavity, but normal baking does not.
Start here: That points first to the lower oven bake element on electric models or the lower bake burner and igniter on gas models.
Lower oven works sometimes
One day it preheats, the next day it stalls or shuts off early.
Start here: Check for a loose door seal or latch issue, then focus on an intermittent lower oven sensor or failing heat source.
Most likely causes
1. Lower oven is in the wrong mode or a delayed/timed setting
Double ovens are easy to mis-set because the controls are split between upper and lower cavities. The display may look normal even when the lower oven is not actually being told to heat now.
Quick check: Cancel the lower oven cycle, wait a few seconds, then set Lower Oven to Bake at 350 and confirm Start was pressed for that cavity.
2. Lower oven heating source has failed
If the upper oven still works, the shared power supply is less likely than a lower-cavity-specific part. On electric ovens that usually means the lower bake element. On gas ovens it is often the lower oven igniter.
Quick check: Watch through the window or open briefly after a minute or two. A bake element should begin heating. A gas igniter should glow and the burner should light shortly after.
3. Lower oven temperature sensor is out of range
A bad lower oven sensor can make the control think the cavity is already hot or heating normally when it is not.
Quick check: If the lower oven starts and then quits early, or shows preheat behavior that does not match the actual cavity temperature, the sensor moves up the list.
4. Lower oven door is not sealing or the latch is not fully released
A door that sits slightly open can bleed heat fast enough to look like a heating failure, especially during preheat. On some models a latch issue can also interfere with normal operation.
Quick check: Look for a gap at the lower oven door, a torn lower oven door gasket, or a latch that does not return fully after self-clean.
Step-by-step fix
Step 1: Reset the lower oven settings and confirm you are testing the right cavity
On double ovens, the lower cavity is often not actually in an active bake cycle even though the panel is lit. This is the fastest no-parts check.
- Cancel any active lower oven cycle.
- Make sure any Delay Start, Cook Time, Sabbath, or timer-based mode is cleared for the lower cavity.
- Set the lower oven to Bake at 350°F and press Start for the lower oven specifically.
- Wait 2 to 3 minutes and listen for normal heating sounds or watch for visible heat activity.
- If your model has separate upper and lower selectors, confirm the lower cavity is the one responding on the display.
Next move: If the lower oven begins heating normally after a clean reset, the problem was likely a setting or mode issue rather than a failed part. If the lower oven still stays cold or only barely warms, move to the heat-source check next.
What to conclude: You have ruled out the most common false alarm before opening anything up.
Stop if:
- The display shows an error code and will not clear.
- The lower oven trips a breaker or shuts the whole unit down.
- You smell gas, burning insulation, or see sparking.
Step 2: Check the lower oven door, gasket, and latch position
A lower door that is not sealing can make preheat drag badly, and a latch that did not fully return can keep the cavity from operating normally.
- With the oven cool, close the lower door and look for an uneven gap around the frame.
- Inspect the lower oven door gasket for tears, flat spots, or sections pulling loose from the channel.
- If the oven recently ran self-clean, make sure the lower oven latch is fully returned to the open position.
- Press gently on the closed lower door while the oven is trying to preheat and see whether heat behavior changes.
- Clean obvious grease or baked-on debris from the door sealing area with warm water and mild soap on a soft cloth, then dry it.
Next move: If the lower oven heats better when the door is held snug or after the latch fully releases, the sealing or latch issue is likely the main problem. If the door seals well and the lower oven still does not heat, the next step is to identify whether the lower heat source is working.
What to conclude: You have separated a heat-loss problem from a true no-heat problem.
Step 3: Watch the lower oven heat source and separate electric from gas behavior
This is where the strongest clues show up. Electric and gas lower ovens fail differently, and you want to catch that before buying anything.
- Start a lower oven Bake cycle and watch the first few minutes carefully.
- On an electric lower oven, look for the lower bake element to begin heating. It may not glow bright red immediately, but it should get hot and show signs of life.
- Inspect the lower bake element for blisters, splits, burn spots, or a section that looks broken.
- On a gas lower oven, listen for the igniter and look for a glow near the lower bake burner.
- If the gas igniter glows for a while but the burner never lights, or lights only after a long delay, treat the lower oven igniter as the leading suspect.
Next move: If you find a visibly damaged lower bake element or a glowing-but-not-lighting gas igniter, you have a solid repair direction. If there is no visible damage and the heat source behavior is unclear, check the lower oven sensor next before blaming the control.
Step 4: Check the lower oven sensor and wiring condition with power off
If the lower heat source is not obviously the problem, the lower oven sensor is the next clean check. It can stop proper heating without leaving dramatic visual damage.
- Turn off power to the oven at the breaker and confirm the cavity is cool.
- Locate the lower oven temperature sensor inside the lower cavity, usually mounted to the rear wall.
- Inspect the sensor for obvious damage, heavy corrosion, or a loose mounting screw that lets it sit crooked.
- If you can safely access the connector, look for burned or loose sensor wiring.
- Use a multimeter to check the lower oven sensor resistance if you are comfortable doing so. A room-temperature reading that is far off from normal oven sensor range points to a bad sensor.
Next move: If the lower oven sensor reads clearly out of range or the connector is heat-damaged, replacing the lower oven sensor is a supported next move. If the sensor checks out and the lower heat source also looks normal, the fault is more likely in wiring, relay output, or the control path and that is where many homeowners should stop.
Step 5: Replace the confirmed lower-cavity part or call for service on the control side
By now you should have a real direction: lower bake element, lower oven igniter, lower oven sensor, or a deeper electrical fault that is not a good blind DIY bet.
- Replace the lower oven heating element if it is visibly damaged or stays cold during Bake on an electric model.
- Replace the lower oven igniter if it glows but the lower bake burner does not light, or lights only after a long delay, on a gas model.
- Replace the lower oven sensor if it tested out of range or shows heat-damaged wiring at the sensor connection.
- If none of those checks confirmed a part, stop before ordering a control. Have the lower oven wiring and relay output diagnosed professionally.
- After repair, run the lower oven at 350°F and verify it preheats normally and cycles heat without unusual smells, sparks, or gas delay.
A good result: If the lower oven now preheats in a normal time and holds temperature, the repair path was correct.
If not: If the lower oven still will not heat after a confirmed part replacement, the remaining suspects are wiring or control-side faults that need model-specific testing.
What to conclude: You either finished the repair with a supported part or narrowed the problem enough to avoid wasting money on guesses.
Replacement Parts
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FAQ
Why does the upper oven work but the lower oven does not heat?
That usually points to a lower-cavity-specific problem, not a whole-oven power failure. The most common causes are a bad lower bake element on electric models, a weak lower oven igniter on gas models, a lower oven sensor problem, or a lower cavity setting issue.
How do I know if the lower oven bake element is bad?
On an electric model, look for blisters, cracks, burn spots, or a section that has split open. Even without obvious damage, a lower bake element that stays cold during Bake while the broil function still works is a strong clue.
Can a gas oven igniter glow and still be bad?
Yes. That is a very common failure. A weak lower oven igniter can glow but still fail to draw enough current to open the gas valve properly, so the burner never lights or lights after a long delay.
Could this be the control board?
It could, but it is not the first thing to assume. When only the lower oven is affected, the lower heat source and lower oven sensor are more common than the control. Control diagnosis usually comes after those checks are ruled out.
Why does the lower oven get warm but not hot enough?
That pattern often means the lower cavity is producing some heat but not enough. On gas models, a weak igniter is a top suspect. On electric models, a partially failed lower bake element or a sensor reading problem is more likely than a total control failure.
Can a bad door gasket make it seem like the lower oven is not heating?
Yes, especially during preheat. If the lower door is leaking heat around the frame, the cavity may feel warm but never settle at the set temperature. A torn or flattened lower oven door gasket is worth checking before deeper electrical diagnosis.