Viking · Troubleshooting
Viking Oven Not Heating
A cold Viking oven is a different job on a gas range than on an electric wall oven or dual fuel range. On gas, the igniter and the gas valve come first; on electric, the elements, the overheat cutout and the sensor.
$79 service call, applied to the repair. Monday to Saturday, 8 AM to 7 PM.
In short: panel on but no heat in any mode points to the ignition, sensor or controls on gas, or the overheat cutout on a wall oven. One mode cold points to that mode's element, burner or relay. Heat at the wrong temperature points to the sensor or the temperature knob. If a gas oven smells of gas and has not lit, turn it off, leave and call the gas company or 911 from outside.
Gas or electric: which Viking oven you have
- Gas ovens: Viking Professional all-gas ranges and the 30-inch 3 Series range. A burner under the floor bakes, one at the top broils, and the gas valve opens only when the ignition says it is safe: a glowing igniter on many older Professional ovens, a spark on the 3 Series.
- Electric ovens: Viking wall ovens (VESO and VEDO Professional, DESO and DEDO Designer, 27 and 30 inches) and dual fuel ranges. The bake element is hidden under the floor in two sections, and the broil element sits at the top.
The data plate is under the control panel: at the top left of the oven opening on a wall oven, above the door on a range. See also Viking range repair and Viking wall oven repair.
Owner checks before you call
- Both knobs. These ovens need a mode on the function knob and a temperature on the temperature knob; one alone does nothing. The cycle light stays on while it heats and goes out when preheat is done.
- The timer. A delayed start left programmed on a wall oven keeps it waiting, with DELAY on the display. Cancel it. After a power outage, set the time of day first.
- The breaker. A wall oven has its own double breaker. If it has tripped, switch it fully off, then on; if it trips again, leave it off and call.
- Self-clean. The door stays locked until the oven cools. On a double oven, clean one cavity and start the other after it finishes.
- Foil. Take foil or liners off the oven floor. The bake heat comes up through it, and foil can fuse to the enamel during self-clean.
- Gas. If the burners on top light, gas is reaching the range. Leave the oven valve and its shutoff to us.
Which modes still heat tells us where to look
| What you see | Gas oven | Electric wall oven or dual fuel |
|---|---|---|
| No clock, no light, no heat | Power, breaker, wiring | Power, the double breaker, wiring |
| Clock or panel on, no heat in any mode | Ignition, a sensor or knob, or a tripped high-limit | The overheat cutout, often tripped by a stopped cooling blower, or the power board |
| Bake cold, broil works | Bake igniter or bake gas valve | Hidden bake element or its relay |
| Broil cold, bake works | Broil igniter or broil gas valve | Broil element or its relay |
| Only convection modes cold | Selector or control board; a dead convection fan leaves the oven heating, but unevenly | Convection element, fan motor or board output |
| Heats, but slowly | A weak glow-bar igniter, a worn gasket | One bake section, or the broil element |
| Heats, wrong temperature | Sensor, knob or board | Sensor, knob or board |
What it usually turns out to be
Weak glow-bar igniter on a Professional gas oven
What it usually is: many older Viking Professional gas ovens light with a hot surface igniter, a ceramic bar that must draw enough current before the gas valve opens. With age it still glows but no longer opens the valve: the oven takes minutes to light, lights with a thump, or never lights.
What you can check: a glow through the floor slots lasting well over two minutes with no flame is the classic sign. Turn the oven off and air the kitchen.
What we do: measure the igniter against what the valve needs, replace it, and test the valve if the igniter is good.
Spark ignition locked out on the 3 Series range
What it usually is: the 3 Series lights its bake and broil burners by spark, and you hear clicking under the floor when it tries. With no flame after a few tries it stops until the oven is switched off. Residue on the igniter, a valve that does not open, or a shutoff left closed by an installer are the usual finds.
What you can check: whether it clicks, and whether both modes fail. Do not keep restarting it.
What we do: read the spark module's fault light on models that have one, test both valves, and clean or replace the igniter. The panel light codes are on Viking range repair.
Bake or broil element burned out
What it usually is: when one of the two hidden bake sections fails, the oven still heats, slowly and unevenly. In bake mode these ovens also cycle part of the broil element, so a dead broil element slows preheat too. Elements often fail during or after a self-clean.
What you can check: whether broil heats, and how preheat time compares with when the oven was new.
What we do: measure each element and replace the failed one from inside the oven; the hidden one comes out through a floor access panel.
Overheat cutout tripped by the cooling blower
What it usually is: a wall oven has a thermal cutout above each cavity that cuts the heat if the controls overheat, and a blower that keeps them cool. When the blower stops, the cutout trips: clock on, no heat, often no oven light. The 3 Series range has a high-limit switch and blower doing the same job.
What you can check: listen for the blower during and after cooking.
What we do: replace the cutout, and the blower with it when the blower caused the trip. The upper cutout is reached by sliding the oven partly out; a blower means taking the oven fully out of the cabinet, a two-person job over protected trim and floor. On a double oven the lower cutout is reached from the front, between the cavities.
Sensor, temperature knob or board
What it usually is: on current Viking ovens the temperature knob is not a thermostat. It sends the board a value for your setting, the board reads a sensor at the back of the cavity, and a relay switches the heat. A "bad thermostat" can be a sensor reading wrong, a knob sending the wrong value, or a relay that no longer closes.
What you can check: the thermometer test below.
What we do: measure the sensor cold and hot, read the knob values and test the relay outputs before a board is ordered, since a board is the most expensive part. Our job post Viking Oven Not Holding Temperature? Thermostat Fix (May 2024, Orange County) shows one of these repairs.
Testing the temperature fairly
Every oven swings around its setting as it cycles, so one reading proves little. Put an oven thermometer on the center rack, set 350°F, wait twenty minutes after the cycle light goes out, then read it four or five times over a quarter hour and average. If the average is 25 degrees or more off, the sensor or knob is worth testing.
Stay safe. If you smell gas, do not touch switches; leave the house and call the gas company or 911 from outside. Never remove panels to reach an igniter, valve or wiring: wall ovens run on 240 volts and are heavy, and a range is anchored and on a gas line. Keep pet birds away from self-clean fumes.
What the repair costs
Diagnosis is part of the $79 service call, and that amount comes off the repair once you approve the written price. Range ovens are priced in the first table, wall ovens in the second:
Professional range and rangetop repair (Wolf, Viking, Thermador, Monogram, Dacor)
| Repair | Typical price, parts and labor |
|---|---|
| Burner igniter or spark switch | $250 to $450 |
| Spark module | $300 to $600 |
| Burner valve | $350 to $650 |
| Gas oven igniter | $300 to $550 |
| Gas oven safety valve | $400 to $800 |
| Bake or broil element (dual fuel) | $350 to $700 |
| Oven temperature probe | $250 to $450 |
| Convection fan motor | $400 to $750 |
| Door hinges, pair | $350 to $650 |
| Oven door gasket | $250 to $450 |
| Electronic control or relay board | $650 to $1,500 |
Wall oven and steam oven repair
| Repair | Typical price, parts and labor |
|---|---|
| Oven temperature probe | $250 to $450 |
| Bake or broil element | $350 to $700 |
| Convection fan motor or element | $400 to $750 |
| Door lock motor or switch | $350 to $650 |
| Door hinge or glass | $350 to $750 |
| Steam oven descale and water-system service | $300 to $600 |
| Steam generator or pump | $600 to $1,200 |
| Electronic control board | $700 to $1,600 |
Typical Orange County ranges for parts and labor. The $79 service call is applied to any of them. Parts that ship from the manufacturer and older or discontinued models can run higher. You get the exact written price after the diagnosis and before any work starts.
If the igniter, element or sensor is not on the van, Viking parts come from a distributor, usually in a few business days, and we tell you the wait before you decide. See wall oven repair, professional range repair, pricing, Viking appliance repair and Viking burner not lighting.
Talk to the technician first
Monday to Saturday, 8 AM to 7 PM. The $79 service call is applied to the repair.
Viking oven not heating: questions
Why does my Viking gas oven take so long to light?
On many older Professional ovens the glow-bar igniter has weakened: it glows but no longer opens the gas valve quickly, and a new igniter usually cures it. On a 3 Series, clicking with no flame is a spark or valve fault instead.
Why is the clock on but my Viking wall oven will not heat?
Power is reaching it, so usually the overheat cutout above the oven has tripped, often because the cooling blower stopped. The power board is the other common cause.
Why does my Viking oven take longer to preheat than it used to?
Most often one section of the hidden bake element or the broil element has failed, since preheat uses both. A weak gas igniter or a worn door gasket also slows it.
Is my Viking oven thermostat bad?
On current models the knob only tells the board what you set; a sensor and the board do the regulating. Check with an oven thermometer first, and we test the parts before replacing any.
Why will only one of my Viking double ovens self-clean?
By design only one cavity cleans at a time. Start the second when the first has finished; if both start at the same moment, neither runs.
Can a Viking wall oven be repaired without taking it out of the wall?
Often, yes. Elements, the sensor and the convection fan are reached from inside the oven. The controls and the upper cutout need it slid partly out, and a cooling blower needs it fully out of the wall. Either way we protect the trim, cabinet and floor.