Upper oven heat problem

KitchenAid Double Oven Upper Not Heating

Direct answer: If the lower oven still works but the upper oven will not heat, the usual causes are a failed upper oven bake element, a temperature sensor problem, or a door that is not fully closing and sealing. Start with the simple checks first, then watch how the upper oven behaves during preheat.

Most likely: On an electric double oven, the upper oven bake element is the first thing I suspect when the cavity stays cool or only gets weakly warm while broil still works.

First separate a dead upper oven from a weak-heating upper oven. If the display responds and the lower oven works normally, you are usually dealing with a problem inside the upper oven itself, not a whole-house power issue. Reality check: a lot of 'not heating' calls turn out to be one heating function working and the other one dead. Common wrong move: running repeated long preheats without looking for a glowing or damaged element first.

Don’t start with: Do not start by ordering a control board. Controls do fail, but not nearly as often as a bad heating element, a bad sensor reading, or a door/seal issue.

If broil heats but bake does notFocus on the upper oven bake element first.
If the upper oven warms a little but never reaches set temperatureCheck the upper oven sensor and door seal before blaming the control.
Last reviewed: 2026-04-17

What the upper oven is doing tells you where to look first

Upper oven is completely cold

The display accepts a bake setting, but the upper cavity stays room temperature and you do not feel heat after several minutes.

Start here: Start with settings, door closure, and whether broil works in the upper oven.

Upper oven gets warm but not hot

You feel some heat, but preheat drags on or food comes out undercooked.

Start here: Look for a weak or failed bake element, then check the upper oven sensor and door seal.

Upper oven broils but will not bake

Broil makes heat from the top, but bake mode does little or nothing.

Start here: This strongly points to the upper oven bake element or its circuit.

Upper oven says preheating but never gets there

The control acts normal, but the cavity temperature stalls well below the set point.

Start here: Watch the heating pattern and compare actual temperature rise before considering a control problem.

Most likely causes

1. Failed upper oven bake element

This is the most common cause when the upper oven will not heat properly in bake mode, especially if broil still works. You may see blistering, a split spot, or no visible glow during preheat.

Quick check: Start bake on the upper oven and look for heat after a few minutes. If the top gets hot in broil but bake stays cold, the bake element is the leading suspect.

2. Upper oven temperature sensor reading wrong

A sensor that reads out of range can make the oven underheat, overshoot briefly, or stall during preheat even though the element still has continuity.

Quick check: If the oven warms some but is far off from the set temperature and the element looks intact, the sensor moves up the list.

3. Upper oven door not sealing or not fully closing

A door that sits slightly open, a torn gasket, or a rack installed wrong can dump heat fast enough to make preheat look weak or endless.

Quick check: Close the upper oven door slowly and look for a gap at the corners, a twisted gasket, or pans and racks keeping the door from seating.

4. Upper oven control or relay failure

If the upper oven has correct power, the door closes properly, the sensor checks out, and the bake element is not being energized, the control becomes more likely.

Quick check: This is a later diagnosis, not a first guess. Suspect it after the simpler upper-oven parts and visible clues do not fit.

Step-by-step fix

Step 1: Confirm the upper oven is actually being asked to heat

Double ovens can fool you with timer settings, delayed start, wrong cavity selection, or a door that is not quite shut. This is the fastest no-parts check.

  1. Cancel the current cycle and start a fresh upper-oven bake cycle at a normal temperature like 350°F.
  2. Make sure you selected the upper oven, not the lower oven.
  3. Check that delay start, Sabbath-style hold, demo behavior, or a timer mode is not preventing heat.
  4. Open and close the upper oven door firmly, then confirm it sits flush and does not spring back open.
  5. Wait several minutes and place a hand near the vent area for rising heat without touching hot surfaces.

Next move: If the upper oven starts heating normally after a fresh cycle and firm door close, the problem was likely a setting issue or a door not fully seated. If the control responds but the upper oven still stays cold or barely warms, move on to separate bake-element failure from a temperature-reading problem.

What to conclude: A responsive display with a dead or weak upper oven usually points to a heating component inside that upper cavity, not a total power loss.

Stop if:
  • You smell burning insulation or see smoke beyond a little first-use dust.
  • The breaker trips when the upper oven tries to start.
  • The door will not latch, close, or stay aligned.

Step 2: Separate bake failure from broil failure

The upper oven uses different heating functions. If broil works but bake does not, you can narrow the problem fast without taking anything apart yet.

  1. Start the upper oven on broil and give it a short test period.
  2. Carefully note whether the top of the cavity gets hot and whether the broil element shows normal heating signs.
  3. Cancel broil, let things cool briefly, then start upper-oven bake.
  4. Watch for any heat from the lower part of the cavity and listen for normal cycling sounds.
  5. If visible, inspect the upper oven bake element for blisters, cracks, a burned-through spot, or heavy damage.

Next move: If broil works but bake does not, the upper oven bake element becomes the strongest repair path. If neither bake nor broil heats in the upper oven, the issue may be power to that cavity, a sensor/control problem, or a wiring failure that is not a simple first-part guess.

What to conclude: A one-function failure is usually a component problem. A no-heat-at-all upper oven with a live display needs more caution before parts buying.

Step 3: Check for heat loss and false low-temperature clues

An upper oven that gets warm but never seems to finish preheating is often losing heat or reading temperature wrong, not completely dead.

  1. With power off and the oven cool, inspect the upper oven door gasket for tears, flat spots, or sections pulling loose from the frame.
  2. Make sure no rack, foil, oversized pan, or debris is keeping the upper oven door from closing fully.
  3. Look at the sensor probe inside the upper oven cavity and make sure it is not bent into the wall or coated with heavy residue.
  4. Run the upper oven again and note whether it climbs partway in temperature or stays nearly cold the whole time.
  5. If you have an oven-safe thermometer already on hand, use it as a rough comparison after the oven has had time to stabilize.

Next move: If correcting the door seal or removing an obstruction restores normal heating, you likely avoided an unnecessary part swap. If the upper oven still underheats with a good door seal and no obstruction, the sensor or bake element is more likely than the gasket.

Step 4: Shut power off and inspect the upper oven bake element and sensor more closely

Once the easy checks point inside the upper oven, a close visual inspection usually tells you whether the bake element or sensor is the smarter next part.

  1. Turn the oven off at the breaker and confirm the cavity is cool.
  2. Inspect the upper oven bake element closely for a split sheath, pitting, bubbling, or a burned-open section.
  3. Check the element mounting area for heat damage or loose-looking terminals without pulling on wires aggressively.
  4. Inspect the upper oven temperature sensor inside the cavity for obvious damage, looseness, or contact with the liner.
  5. If the bake element is visibly damaged, treat that as a confirmed repair path. If the element looks sound and the oven was underheating rather than stone cold, the sensor becomes a reasonable next suspect.

Next move: If you find a visibly failed upper oven bake element, replacing that part is the most direct fix. If the element looks intact and the symptoms were weak heat or bad temperature control, the upper oven sensor is the better next part to consider.

Step 5: Choose the repair path or stop before a control-board guess

By now you should have enough evidence to make a smart part decision or call for service without throwing parts at it.

  1. Replace the upper oven bake element if bake failed while broil still worked, or if the element shows visible damage.
  2. Replace the upper oven temperature sensor if the oven heated weakly or inaccurately, the door seals well, and the bake element did not show clear failure.
  3. Replace the upper oven door gasket only if you found a torn, flattened, or loose seal that was clearly leaking heat.
  4. If the upper oven still will not heat after those checks, stop before ordering an oven control. At that point, professional diagnosis is the safer move because relay and wiring faults can mimic each other.
  5. After any repair, run a normal upper-oven preheat and verify it reaches and holds temperature.

A good result: If the upper oven now preheats normally and cycles heat without long stalls, you found the right fix.

If not: If the upper oven still has no heat or erratic heat after the supported part checks, the remaining likely causes are control or wiring related and are better handled with proper electrical diagnosis.

What to conclude: This keeps you from spending control-board money on a problem that was really an element, sensor, or heat-loss issue.

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FAQ

Why does the lower oven work but the upper oven does not heat?

That usually means the problem is isolated to the upper oven cavity. The most common causes are a failed upper oven bake element, a bad upper oven sensor reading, or a door that is not sealing well.

If the upper oven broils, does that mean the bake element is bad?

It makes the bake element the leading suspect, especially if bake stays cold. Broil and bake use different heating functions, so one can fail while the other still works.

Can a bad door gasket keep the upper oven from heating?

Yes, but it usually causes weak heat or very long preheat times rather than a completely cold oven. Look for a visible gap, torn gasket, or a door that does not sit flush.

Should I replace the control board if the display works but the upper oven does not heat?

Not first. A working display does not prove the heating side of the control is good, but bake elements and sensors fail more often and are easier to confirm. Leave control diagnosis for after the simpler upper-oven checks.

How do I know if the upper oven sensor is the problem?

Suspect the sensor when the upper oven heats some but stays noticeably off temperature, preheats forever, or cycles oddly even though the bake element looks intact and the door seals properly.

Is it safe to keep trying preheat when the upper oven is not heating right?

A couple of short checks are fine, but do not keep running long cycles if the element is damaged, the breaker trips, or you smell burning wiring. Repeated attempts can make a small electrical failure worse.