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Viking oven interior view

How to Fix a Viking Oven That Takes Forever To Preheat

Waiting for a Viking oven to preheat shouldn’t take forever. 

If your oven isn’t preheating as quickly as it used to, your appliance likely needs maintenance or repair. 

To help guide you in figuring out what’s wrong, here’s how to fix a Viking oven that takes forever to preheat.

Incorrect Installation – Oven Is Using Wrong Voltage

Before you purchase or install a new Viking oven, you need to confirm that the outlet your oven will be plugged into has the right voltage.

If you install a Viking oven that uses the wrong voltage, it will take a long time to preheat– if it preheats at all! 

In fact, virtually all modern Viking ovens need a power outlet powered by a 220-volt circuit breaker, as opposed to your standard 110-volt breakers that most household outlets use. 

With that said, a 220-volt outlet is designed completely differently than a standard outlet, which means that you won’t be able to plug your oven into it. Still, if you’re the own doing the electrical installation in your home, this is a very crucial step in the process.

220 volt circuit breaker

If you have questions about the type of voltage you need to install a Viking oven, contact a local appliance repair service. A professional Viking technician will make sure you have everything you need for a successful installation.

Problems with a Thermostat or Temperature Sensor

Your Viking oven might take forever to preheat if there are any problems with the thermostat or temperature sensors. 

Both an oven thermostat or temperature sensor helps to keep the oven at the right heat setting. In other words, it tell the oven when to increase its heat, and when to shut off the element. 

So, if either malfunction or break, it can prevent the oven from reaching an accurate temperature


This is particularly true when you’re having any issues with preheating your Viking oven. If the oven can’t sense the internal temperature, it will take a long-time to preheat or it might not go off at all. 

Diagnosing a broken or malfunctioning thermostat or temperature sensor requires using a multimeter or voltage tester. Therefore, if your oven isn’t reaching the right temperature settings, it might be best to contact a local appliance repair professional for help.

Viking temperature sensor

Damaged Heating Elements

A typical heating element will last around 5 years. What this means is that, no matter what, eventually, a heating element will become damaged or start to fail. 

A damaged heating element will take much longer to preheat your oven compared to one that is new, or it might simply stop producing any heat at all. 

To fix a damaged heating element, you’ll first want to make sure the power to your Viking oven is turned off. 

You’ll find the heating elements inside the oven at the bottom. This is the bake element. Most ovens will also have a broiler heating element located at the top of the oven. 

Check the heating elements for any signs of damage. 

A damaged heating element will have cracks or blisters. If you see visible signs of damage on the element, the oven isn’t broken. But you will need to remove the damaged heating element from the oven and replace it with a new one. 

Sometimes, however, the heating elements won’t show signs of damage. But in this case, if your oven has stopped producing heat, and you’ve ruled out any type of issues with its power supply, breakers, or fuses, the issue is mostly likely a faulty heating element.

Viking heating elements

Low Gas Supply

If your Viking oven isn’t getting the right amount of gas, it might also take forever to preheat. 

A variety of factors causes a low gas supply. A blockage might prevent gas flow, or a valve in your Viking oven might need to be replaced. 

This could be due to a kinked or clogged gas line. Or, in some cases, the oven’s gas burner might simply be dirty and clogged up with grease or other residues. 

But, here’s the thing; when it comes to gas supply issues, you truly don’t want to attempt to resolve the problem independently. 

Viking oven gas burner

If you attempt to fix a low gas supply problem on your own, you could end up seriously harming yourself and others. So if you suspect any issue with your gas oven or range, call in a professional technician to assess the situation safely.

The Oven Door Is Not Properly Shut

An improperly closed Viking oven door allows heat to escape. If the heat is escaping, the oven will take much longer to preheat.

To fix this problem, check the oven door hinges and seal. 

If the door hinges are loose or damaged, tighten them with a screwdriver or replace them completely if needed. 

To check the seal for damage, open the oven door and look at the rubber surrounding the perimeter of the door. Do you see any cracks, breaks, tears, or areas where the seal is missing completely? 

If so, replacing the door seal is simple. You’ll simply need to remove the faulty door seal out and replace it with a new one.

Viking oven door seal

Viking Ovens: DIY or Professional Technician?

It’s extremely frustrating when an oven takes forever to preheat. And, it’s even worse when your oven breaks down and stops working entirely. 

Fortunately, knowing how to maintain, service, and troubleshoot your appliance can help keep it working at its full capacity for as long as possible. 

However, while some Viking oven repairs might require nothing but a screwdriver, some other fixes and issues might need the proper know-how to get the job done right. 

When it comes to your Viking oven, don’t leave anything to chance. 

Contact Viking Appliance Pros to speak with a professional technician. Our team of experts will perform same-day service to make sure your Viking oven is working as it should.

We are a family owned and operated appliance repair company specializing in Viking brand appliances. We offer same day service at no extra cost and our service call is free with a completed repair.


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