Central Minnesota Appliance RepairCMN Appliance
SYMPTOM · OVEN NO HEAT

Oven Not Heating The 8 Real Causes, Ranked by Frequency

An oven that powers on, lights up, and beeps but never reaches temperature is almost always a failed bake element, a failed igniter (gas), a tripped half of the 240V breaker (electric), or a control board that's lost the relay. Below: the eight causes we actually find on Twin Cities service calls, in the order we find them, across every major brand from Whirlpool and GE to Wolf and Thermador.

  • 4.5★ · 990+
  • 1-Yr Warranty
  • OEM Parts
  • Same-Day
(651) 364-7466
$149Trip feeWaived on repair
See brands we service

Reviewed by Mike Larson, Master Appliance Technician · 18+ yrs in-field · Last reviewed

  • Same-day diagnostic

    Call before 2pm weekdays.

  • OEM parts on truck

    Brand-specific stocking.

  • Diagnose before quote

    Written, no surprises.

  • 1-yr labor warranty

    Parts & labor in writing.

Quick answer

Oven Not Heating

The five-minute self-check: (1) confirm both halves of the 240V breaker are fully on — a half-trip lets the display work with no heat, (2) try a Bake cycle and watch the bottom element glow within 60 seconds (electric) or listen for the igniter to click and gas to flow (gas), (3) confirm the oven isn't in Sabbath mode, demo mode, or a delayed-start state. If it still won't heat, most repairs land $245–$485 all-in. Flat $149 trip fee waived on approval. 1-year written warranty.

Root causes, ranked by what we find

Most-likely failures (by frequency)

1. Failed bake element — the #1 electric-oven cause

What it is: The bake element is the horseshoe-shaped heating coil at the bottom of the oven. After 6–12 years it cracks, blisters, or burns through. Symptom: oven preheats forever and never reaches setpoint, or the broil element works but bake doesn't. Whirlpool, GE, KitchenAid, Frigidaire, and Maytag 30-inch electric ranges are the most-common service. Often visible — look for a blister, burn mark, or break in the element.

Fix: Test element resistance (should read 19–30Ω cold). Replace OEM bake element, verify both bake and broil elements draw correct amperage, test full preheat cycle.

Typical all-in: $245–$365 all-in

2. Failed oven igniter (gas) — the #1 gas-oven cause

What it is: Gas ovens use a glow-bar igniter to open the gas safety valve. Once igniter current drops below ~3.2A the valve won't open and there's no gas, no flame, no heat. Symptom: oven clicks on but you smell no gas and hear no whoosh. The most-common gas-oven failure across Whirlpool, GE, Samsung, LG, Maytag, and Frigidaire — typically at year 5–10.

Fix: Test igniter current draw in series with the gas-valve circuit. Replace OEM igniter (round or flat style — they are NOT interchangeable), verify 3.2A+ and a 30–90 second light-off.

Typical all-in: $265–$385 all-in

3. Tripped half of the 240V breaker (electric ovens only)

What it is: Electric ranges and wall ovens pull 240V — one half (120V) runs the display, lights, and clock, the other half powers the elements. If only one half trips, the display works, the convection fan may run, but no element heats. Symptom: oven looks completely normal, beeps, accepts settings — just never gets hot.

Fix: Reset both breakers fully (off then on). If it trips again under load, the range outlet, the breaker itself, or one element has shorted to ground — we diagnose voltage at the terminal block on the first visit.

Typical all-in: DIY · $0 if it's a breaker reset

4. Failed bake/broil relay on the control board

What it is: The control board uses small relays to switch 240V to the bake and broil elements. After 8–12 years (or one bad power surge), the bake relay welds open or burns its contacts. Symptom: broil works fine, bake never heats — or vice versa. Element tests good with a multimeter but never sees voltage. Common on GE Profile, KitchenAid, Whirlpool, and Frigidaire double-ovens.

Fix: Verify element resistance is good, test bake-relay output at the board harness, replace OEM control board (relays are not field-serviceable). Bake-and-broil-work-but-not-both-at-the-same-time also points here.

Typical all-in: $385–$585 all-in

5. Failed oven temperature sensor (RTD)

What it is: Every modern oven uses a platinum RTD sensor in the upper-rear of the cavity. When it drifts open or out of spec the control reads 'already at temp' and never calls for heat. Symptom: preheat times out with an F1 / F3 / F30 / F31 code, or oven runs ice-cold while displaying a normal temperature.

Fix: Test RTD resistance at room temp (should read ~1080Ω at 70°F across most brands). Replace OEM sensor if open, shorted, or out of spec. Always verify with a probe thermometer before closing.

Typical all-in: $225–$345 all-in

6. Failed gas safety valve (gas)

What it is: The gas safety valve is solenoid-operated — igniter heat drives current that opens it. If the valve coil opens up, even a good igniter can't get gas to the burner. Symptom: igniter glows bright orange the full 90 seconds, never gets gas, never lights. We always confirm the igniter passes current spec BEFORE quoting a valve — a valve replaced for a bad igniter is a $300+ mistake.

Fix: Confirm igniter current is in spec, test valve coil resistance, replace OEM safety valve. Pressure-test gas line and re-light pilot if applicable.

Typical all-in: $345–$485 all-in

7. Stuck Sabbath mode, demo mode, or delayed-start

What it is: A guest, a kid, or a power blip can leave the oven in Sabbath mode (heat locked off), demo / showroom mode (no heat at all), or a delayed-start state (won't heat until a future clock time). Symptom: oven seems normal but heat never engages — and there may be a small SAB, dEm, or Hold icon on the display you've never noticed.

Fix: Walk the brand-specific exit sequence — usually a 5–10 second hold of Cancel + Bake + Start or a power-cycle at the breaker. We do this free over the phone if you call before booking a visit.

Typical all-in: FREE phone fix in most cases

8. Failed main control board (rare — last suspect)

What it is: If element / igniter / sensor / breaker / safety valve / mode-state all test good, the main control has lost its heat-call routine entirely. We find this on under 5% of 'oven not heating' calls — almost always after a power surge or moisture event. Wolf, Thermador, Viking, and Bosch wall ovens cluster here at year 8–12.

Fix: Verify heat-call signal at the relay-board harness in service mode, replace OEM main control if no signal. Wolf, Thermador, Viking, and Bosch boards are special-order on built-ins — call ahead.

Typical all-in: $485–$785 all-in (more on built-ins)

Symptom → cause

What's the pattern telling you?

If you see thisIt's almost certainlyRead more
Bake works, broil doesn't (or vice versa)Failed bake element or broil element (visible burnout point)Oven element repair
Display lit but no heat at all, both elements visually fineFailed bake/broil relay on control boardControl-board repair
Gas oven igniter glows but flame never lightsWeak igniter — failing to reach gas-valve trigger amperageGas igniter repair
Oven heats but won't reach setpoint (under by 25–75°F)Oven sensor (RTD) drift or calibration offsetOven temperature wrong
F1 / F2 / F3 / F9 / E0 error on displaySensor short (F3) / open (F2) or relay-board fault (F9)Error-code repair
Dual-fuel range bakes fine, broil deadUpper-element open or door-latch microswitch (self-clean models)Oven door issues
Wall oven dead after self-clean cycleThermal fuse blown OR control board cooked from cabinet heatWall-oven repair
Convection works, conventional bake doesn'tHidden bake element open under the cavity floorHidden-bake element

By brand

How 'oven won't heat' fails on each brand

BrandTop failure modeSignature symptomBrand page
Whirlpool / KitchenAid / MaytagHidden bake element + relay boardDisplay reads PRE-HEAT forever; never reaches setpoint.Whirlpool oven →
GE / GE ProfileOven sensor (RTD) drift + ERC controlF2 / F3 errors or under-temp by 50°F+.GE oven →
SamsungBake element coil burnout at weld pointVisible glowing spot, then dead — sometimes trips breaker.Samsung oven →
LGBake element + main PCB relayF19 error or no heat with full display function.LG oven →
Frigidaire / ElectroluxIgniter (gas) or bake element (electric)Clicking with no light, or dead element after self-clean.Frigidaire oven →
BoschDoor-lock motor or relay board on built-in ovensLock-cycle interrupt prevents heat call from completing.Bosch oven →
Thermador / Wolf / Sub-ZeroIgniter (gas) + ERC boardPro-range igniter weak at year 8–12; ERC fail post-surge.Pro range repair →

Diagnostic order

How to diagnose an oven that powers on but won't heat (5-minute self-check)

  1. 1. Confirm both halves of the 240V breaker (electric)

    Flip the range's double-pole breaker fully OFF, then ON. A half-tripped breaker is the #1 cause of 'looks normal but won't heat' on electric ranges and wall ovens.

  2. 2. Watch the bake element on a Bake cycle (electric)

    Set the oven to Bake 350°F. The bottom element should glow dull red within 60 seconds. No glow = open element, bad relay, or no power to that element.

  3. 3. Listen and smell on a Bake cycle (gas)

    Set the oven to Bake 350°F. You should hear the igniter click on, see it glow orange in the burner tube, and hear gas whoosh into a blue flame within 30–90 seconds. No flame = igniter or safety valve.

  4. 4. Rule out Sabbath / demo / delayed-start mode

    Look for SAB, dEm, Hold, or a clock-only display. Brand-specific exit sequences vary — check the back of the door panel sticker or the owner's manual. Most are a 5–10 second hold of Cancel or Cancel + Bake.

  5. 5. Verify with a probe thermometer

    If the elements glow but the cavity never reaches setpoint, the issue is the RTD sensor (out of calibration) or a sticking relay. Both are clean diagnoses with a meter — call for service.

FAQs

Common questions

Why does my oven turn on but not heat?

Across every brand we service, the order of cause-frequency is: (1) failed bake element on electric ovens, (2) failed igniter on gas ovens, (3) tripped half of the 240V breaker on electric, (4) failed bake-relay on the control board, (5) failed RTD temperature sensor, (6) failed gas safety valve, (7) stuck Sabbath / demo / delayed-start mode, (8) failed main control board. The first three are checkable in under 10 minutes — start there.

How much does it cost to fix an oven that won't heat in Minneapolis?

Most 'won't heat' repairs land $225–$585 all-in on standard ranges and wall ovens, $485–$985 on built-in luxury (Wolf, Thermador, Viking). Bake element $245–$365, gas igniter $265–$385, RTD sensor $225–$345, gas safety valve $345–$485, control board $385–$785. The $149 trip fee is credited toward any approved repair.

How do I know if it's the bake element or the control board?

Watch the bake element on a Bake cycle. If it glows dull red within 60 seconds it's good — the issue is then the RTD sensor or the control. If it never glows, test resistance: an open element reads infinite, a healthy element reads 19–30Ω. A good element that never sees voltage means the bake relay on the control board has failed.

My broil works but bake doesn't — what's wrong?

Almost always one of two things: a burned-out bake element (most common — they sit closer to spills and fail first) or a failed bake-relay on the control board. We test element resistance first — a $245–$365 element fix is far more common than a $385–$585 control board.

Is an oven that won't heat a same-day fix?

Yes — we stock OEM bake elements, gas igniters (round and flat), RTD sensors, gas safety valves, and the most-failed control boards for Whirlpool, GE, Samsung, LG, KitchenAid, Bosch, Maytag, and Frigidaire on the truck. Built-in luxury boards (Wolf, Thermador, Viking) are special-order — call ahead with the model and serial.

Should I repair or replace an oven that won't heat?

Repair — almost always. A $245–$485 repair extends life 5+ years on a $1,200–$3,500 range. The only time we recommend replacement is on a unit past year 14 with stacked failures (no heat + door + control), or on luxury built-ins past year 18 where boards are discontinued.

Twin Cities · field notes

Twin Cities field notes

Wolf and Thermador gas wall ovens in Edina, Wayzata, Minnetonka, North Oaks custom kitchens need OEM-only igniters — we don't substitute aftermarket on high-end builds. Whirlpool / Maytag / KitchenAid bake-element failures at year 5–10 are routine across the metro and finish first visit with stocked OEM elements. Hard well water shortens igniter life by 30% in Hudson, River Falls, Hastings, Lake Elmo. Same-day windows weekdays before 2pm cover the full metro.

Related coverage

Keep reading