Oven problem
Viking oven not heating? What’s wrong and how it’s fixed
A Viking oven that stays cold, heats painfully slowly or never reaches the set temperature usually has one failed heat source or a sensor giving the control bad information. Which part depends on whether your oven is gas or electric — here is how to tell.
- Gas oven: usually the bake igniter
- Electric/dual-fuel: element or sensor
- $89 service call, waived with repair
Short answer
On a gas Viking oven, the most common cause is a weak bake igniter: it glows but no longer draws enough current to open the gas valve, so the oven never lights or lights late. On electric and dual-fuel ovens (where the oven is electric), it is usually a failed bake element or a faulty temperature sensor. Wrong temperatures without a failed heater point to the sensor, calibration or the control.
Match the symptom to the likely part
| Symptom | Gas oven | Electric / dual-fuel oven |
|---|---|---|
| No heat at all | Bake igniter, gas valve, no power to the igniter circuit | Bake element, thermal fuse or high-limit, relay on the control |
| Heats very slowly, takes 30+ minutes | Weak igniter that is slow to open the valve | One of two elements failed (bake or convection) |
| Broil works, bake doesn’t | Bake igniter or its valve outlet | Bake element |
| Bake works, broil doesn’t | Broil igniter / infrared broil burner | Broil element |
| Overshoots or undershoots the set temperature | Thermostat or sensor, burner flame | Temperature sensor (RTD), its wiring, control |
| Shows an error code and stops | Sensor or door-lock fault, control fault | Sensor or door-lock fault, control fault |
| Oven was fine until a self-clean cycle | Overheated part: thermal fuse, sensor, lock motor | Thermal fuse, sensor, lock motor, element |
Safe checks before you book
- Check the clock and displayIf the display is blank, check the breaker. Electric and dual-fuel ovens use a 240-volt circuit; gas ovens still need a 120-volt supply for the igniter and controls.
- Rule out Showroom and Sabbath modesViking’s electronic ovens have a Showroom mode that turns off the heating elements and convection fan while the display looks normal. Check the settings menu. On knob ovens, make sure the selector is not turned past BROIL.
- Watch a gas oven lightIf the bake igniter glows orange for more than about a minute without the burner lighting, the igniter is the usual suspect. Some older Viking gas self-clean ranges (VGSC) light the oven with a spark instead: they try three times, then lock out — turning bake off and on again starts a fresh attempt.
- Check the gas supplyIf the cooktop burners on a gas range light normally, gas is reaching the appliance. If nothing lights, check that the supply valve behind the range is open.
- Test with an oven thermometerIf the oven heats but bakes wrong, put a separate oven thermometer in the center and compare after 20 minutes at 350°F. Large differences point to the sensor or calibration.
Stop there. Igniters, valves, elements and sensors sit behind panels with gas connections and line-voltage wiring — that part is a job for a technician.
Why the gas oven igniter is the usual culprit
Most Viking gas ovens use a “hot surface” igniter — a glow bar wired in series with the oven gas valve. The valve only opens once the igniter is hot enough and drawing enough current. As igniters age, their resistance rises: they still glow, which makes them look fine, but they no longer pass enough current to open the valve fully or quickly. The result is an oven that heats slowly, cycles off and won’t come back, or never lights at all.
Because the igniter is a wear part, we test its current draw rather than guessing. If it is below the valve’s requirement, replacing the igniter fixes the problem. If it tests fine, we move on to the valve, wiring and control.
What the repair usually costs
- Bake or broil igniter (gas)Typical: $300–$520 including the part.
- Bake, broil or convection elementTypical: $280–$480.
- Oven temperature sensorTypical: $240–$420.
- Control or relay boardTypical: $550–$1,100 — only replaced after the sensor, lock and wiring test good.
Every visit starts with the $89 service call, waived when you approve the repair. All Viking repair prices.
Questions Viking owners ask us
Why does my Viking oven take so long to preheat?
On a gas oven, a weakening bake igniter is the classic cause: it glows but opens the valve late. On electric and dual-fuel ovens, one failed element (for example the convection element while the bake element still works) makes preheat drag. Large ovens with heavy racks also take longer than small ones, so compare against your normal time, not a guess.
Can I recalibrate my Viking oven?
The Viking use-and-care manuals we have checked do not include an owner calibration setting. If the oven is consistently off, a technician tests the temperature sensor — on VESO/VEDO-type electric wall ovens it reads roughly 1,090 ohms at room temperature — and its wiring, then replaces the sensor or adjusts the control as the model allows.
Is it safe to use my gas oven if it smells of gas before it lights?
A brief, faint smell as the burner lights can be normal. A strong or lasting gas smell is not: don’t touch any switches or controls — leave the house now and call 911 and PG&E (in Palo Alto, City of Palo Alto Utilities) from outside.
How much does it cost to fix a Viking oven that won’t heat?
Most fixes are one part: a gas bake igniter ($300–$520), an element ($280–$480) or a sensor ($240–$420), including parts and labor. The $89 service call is waived when you approve the repair.
Related Viking help
Last reviewed October 8, 2026 by the Viking Repair Co. service team.
Oven still cold?
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