Direct answer: When the upper oven still works but the lower oven stays cold, the problem is usually in the lower oven itself: a bad bake element, a lower oven temperature sensor that is reading wrong, or a door that is not closing and sealing properly.
Most likely: Start with the lower oven settings and a visual check of the lower bake element. If the element is split, blistered, or never glows while preheating, that is the strongest DIY lead.
First separate a true no-heat problem from a slow-heat or wrong-mode problem. If the lower oven light, display, and fan behavior seem normal but the cavity never gets hot, stay focused on the lower heating parts and door seal. Reality check: a lower oven can look like it is running and still never make usable heat. Common wrong move: replacing the control because the display works but the oven does not.
Don’t start with: Do not start by ordering an oven control board. On this symptom, controls are farther down the list than the lower bake element and lower oven sensor.
The display responds and the cycle starts, but the lower cavity never gets warm enough to cook.
Start here: Check the cooking mode, then inspect the lower bake element for visible damage before moving to sensor or wiring clues.
Top heat may come on, but normal baking leaves food raw or barely warmed.
Start here: Go straight to the lower bake element branch. That pattern strongly points there.
Preheat drags on, temperatures stay low, or food takes much longer than usual.
Start here: Look for a weak lower bake element, a loose door seal, or a lower oven temperature sensor reading off.
It overshoots, undershoots, or cycles strangely even though the oven seems to run.
Start here: Check the lower oven temperature sensor and the door seal before suspecting the control.
On an electric double oven, the lower bake element does most of the work in bake mode. When it opens up or burns through, the oven may stay cold or only get weak top heat.
Quick check: With power off and the oven cool, look for a split, blister, burn spot, or section that has sagged or popped open.
A lower oven set to broil, delay, keep warm, or a very low temperature can look like a heating failure when it is really a setup problem.
Quick check: Cancel the cycle, set the lower oven to regular bake at 350°F, and watch for heat within several minutes.
If the sensor reads hotter than the cavity really is, the control can cut heat early or barely heat at all.
Quick check: If the bake element looks intact and the oven warms a little but never reaches set temperature, the sensor moves up the list.
A door left slightly open, a torn lower oven door gasket, or a hinge issue can bleed off heat fast enough to mimic a weak heating problem.
Quick check: Close the lower door and check for an even seal all around. Look for gaps, torn gasket sections, or a door that sits crooked.
A surprising number of 'not heating' calls turn out to be the lower oven in the wrong mode, a delayed start, or a canceled cycle that looked active.
Next move: If the lower oven starts heating normally, the problem was settings or door closure, not a failed part. If the lower oven still stays cold or barely warms, move to a visual heating check.
What to conclude: You have ruled out the easiest false alarms before opening anything up.
The way the lower oven behaves during preheat separates a dead bake element from a sensor or control issue pretty quickly.
Next move: If broil works but bake does not, the lower oven bake element becomes the leading suspect. If neither bake nor broil seems to heat, or the breaker trips, stop DIY and treat it as a deeper electrical or control problem.
What to conclude: A bake-only failure usually points to the lower bake element. Weak or erratic heat with no obvious element damage leans more toward the lower oven sensor, wiring, or control.
This is the most common confirmed repair path when the lower oven will not bake or heats very weakly.
Next move: If you find visible damage, you have a strong diagnosis and a realistic DIY repair path. If the element looks intact, do not assume it is good. Move on to the sensor and door-seal checks before blaming the control.
If the element is not obviously failed, the next most useful homeowner checks are the sensor behavior and heat loss around the door.
Next move: If the gasket is clearly damaged, replace the lower oven door gasket. If the oven heats but runs far off temperature with no obvious element damage, the lower oven temperature sensor is the stronger part lead. If the sensor looks normal and the door seals well, the remaining likely causes are hidden wiring damage or a control issue that is better handled with testing.
By this point you should have a supported repair path instead of guessing at expensive parts.
A good result: If the lower oven now preheats normally and holds temperature, the repair path was correct.
If not: If the same symptom remains after the right lower-oven part replacement, stop and have the wiring harness and control circuit tested professionally.
What to conclude: You have covered the common homeowner-fixable causes. What is left usually needs meter testing and access beyond basic DIY.
Repair Riot may earn a commission from qualifying purchases, at no extra cost to you.
That usually means the house power is present and the problem is local to the lower oven. The most common lower-only causes are a failed lower oven bake element, a bad lower oven temperature sensor, or a door that is not sealing well.
Yes. Some bake elements fail internally without a dramatic break you can see right away. But if broil works and bake does not, the lower oven bake element is still one of the strongest suspects even when it is not obviously blown apart.
No. On this symptom, that is usually a guess-buy. Check the lower oven settings, bake element, sensor behavior, and door seal first. Control problems are possible, but they are not the first place to spend money.
That often points to a weak or failed lower oven bake element, a sensor reading wrong, or heat leaking out around the door gasket. The display can act normal while the cavity never reaches cooking temperature.
Not if the breaker trips, wiring smells hot, or you see burned terminals. If the lower oven simply does not heat but the upper oven works normally, stop using the lower oven until you confirm the failed part and repair it.