How To Tell If Oven Heating Element Is Bad

Is your oven not heating like it should? The problem might be a faulty part. Learning How To Tell If Oven Heating Element Is Bad is a great first step. You can often figure this out yourself with some simple checks. This guide will walk you through the clear signs and easy troubleshooting steps to confirm if your oven’s heating element needs replacing.

A broken heating element is one of the most common reasons an oven stops working properly. It’s the part that gets red-hot to create heat for baking and broiling. When it fails, your food won’t cook correctly. The good news is that diagnosing it is usually straightforward. You just need to know what to look for.

Common Signs of a Faulty Oven Element

Before you start testing with tools, your senses can give you the first clues. Look for these clear indicators that something is wrong with the heating element.

Visible Damage: This is the most obvious sign. Look at the element for any blisters, cracks, or holes. If you see a section that looks burnt or melted, it’s definitely bad. The element should have a consistent color without any glaring defects.
No Glow When Heating: Turn your oven on to a normal baking temperature, like 350°F. Look through the window without opening the door. The bake element (at the bottom) should glow a bright orange-red within a few minutes. If it doesn’t glow at all, it’s likely failed.
Food Cooking Unevenly: If your cakes are raw on one side or your casseroles are cold in the middle, it points to an element not distributing heat evenly. A weak or damaged spot on the element can cause this.
Oven Takes Too Long to Preheat: A noticeable increase in preheat time is a classic symptom. If it used to take 10 minutes and now takes 30, the element is probably struggling to produce heat.
Spark or Flash: If you ever see a bright flash or spark from the element when the oven turns on, turn it off immediately. This indicates a serious short circuit and the element needs to be replaced right away.

Safety First: What to Do Before You Start

Working with appliances requires caution. Always follow these safety steps to protect yourself from electric shock or injury.

Turn Off the Power: Go to your home’s main circuit breaker panel and locate the breaker that controls the oven. Switch it to the OFF position. This is the only way to ensure the oven is completely safe to work on. Don’t rely just on the oven’s controls.
Let the Oven Cool: If you were just testing the oven, make sure it has cooled down completely. The elements and interior can get extremly hot and cause severe burns.
Gather Your Tools: You’ll likely need a screwdriver (Phillips or flat-head, depending on your oven), a pair of needle-nose pliers, and a multimeter for testing. Wear work gloves to protect your hands from sharp edges inside the oven cavity.

Step-by-Step Visual Inspection

With the power off and the oven cool, you can begin a hands-on inspection. Start with a thorough visual check of both the bake and broil elements.

Inspecting the Bake (Bottom) Element

Open the oven door and look at the metal coil at the very bottom. This is the bake element.
Follow the entire length of the coil with your eyes. Look closely for any cracks, blisters, or areas where the coil looks thinner or damaged compared to the rest.
Check the points where the element connects to the back wall of the oven. Sometimes the failure happens right at these connection terminals.

Inspecting the Broil (Top) Element

Look at the metal coil at the top of the oven interior. This is the broil element.
Perform the same visual check for cracks, holes, or discoloration. Broil elements can sometimes fail more visibly because they operate at a higher temperature.
Note that some ovens have a hidden bake element under the floor. You may need to remove the oven rack and possibly the floor panel to see it.

How to Test an Oven Element with a Multimeter

A visual check isn’t always enough. An element can look fine but still be broken inside. A multimeter is a cheap tool that gives you a definitive answer. It measures electrical continuity, which tells you if electricity can flow through the element.

Disconnect the Power: Double-check that the circuit breaker for the oven is OFF.
Access the Element Terminals: You may need to remove a few screws from the back panel of the oven to access the wires connected to the element. Sometimes you can access them from inside the oven after pulling the element forward gently.
Disconnect the Wires: Carefully pull the wire connectors off the two element terminals. They might be tight; you can wiggle them gently with needle-nose pliers.
Set Your Multimeter: Turn the multimeter dial to the lowest setting for Ohms of resistance (Ω).
Test for Continuity: Touch one multimeter probe to each of the element’s terminals. It doesn’t matter which probe goes on which terminal.
Read the Results:
- Good Element: You will get a reading typically between 20 and 100 Ohms. A common range is 25-50 Ohms. This shows continuity; the circuit is complete.
- Bad Element (Open): The multimeter will show “OL” (Open Loop) or infinity (∞). This means the circuit is broken inside the element and no current can flow. The element is bad.
- Bad Element (Grounded): Touch one probe to a terminal and the other probe to the metal sheath or body of the element. The meter should read “OL.” If it shows any continuity (a number), the element is shorted to ground and is bad.

What If the Element Tests Okay?

If your element glows and tests fine with a multimeter, but the oven still isn’t heating right, the problem lies elsewhere. Don’t worry, there are a few other components you can check.

Temperature Sensor: This is a thin metal rod usually located in the back of the oven. It can give incorrect readings to the control board, causing heating issues. You can test its resistance with a multimeter; it should change as the temperature changes.
Oven Thermal Fuse: This is a safety device that blows if the oven overheats. If it’s blown, it will cut power to the oven. It can be tested for continuity.
Control Board or Clock Timer: The electronic controls can malfunction. If the board isn’t sending power to the element, the oven won’t heat. This is a more complex diagnosis.
Faulty Wiring or Connections: Check the wires leading to the element for burns, breaks, or loose connections at the terminal block.

How to Replace a Bad Oven Heating Element

Once you’ve confirmed the element is bad, replacing it is usually simple. Most elements are held in by two screws and plug directly into the oven’s wiring.

Purchase the Correct Part: Find the model number of your oven (usually on a sticker inside the door frame or on the back). Use this to buy the exact replacement element from an appliance parts store or online.
Disconnect Power: Again, ensure the circuit breaker is OFF.
Remove the Old Element: Unscrew the two screws (or sometimes brackets) holding the element to the oven wall. Gently pull the element forward a few inches.
Disconnect the Wires: Pull the wire connectors straight off the old element’s terminals. If they’re stuck, use needle-nose pliers to gently wiggle them loose. Don’t pull on the wires themselves.
Install the New Element: Connect the wires to the terminals on the new element. Push them on firmly until they seat. Position the element loops into the oven, line up the mounting holes, and secure it with the screws.
Restore Power and Test: Turn the circuit breaker back on. Set the oven to 350°F and watch for the new element to glow evenly within a few minutes. Let it run for a few minutes to ensure it’s working correctly.

Preventing Future Heating Element Problems

With proper care, you can extend the life of your new oven element. A few good habits make a big difference.

Avoid Spills: Clean up food or liquid spills as soon as the oven cools. Sugary or acidic spills can corrode the element’s metal surface over time.
No Foil on the Bottom: Don’t line the oven bottom with aluminum foil. This can trap heat and cause the element to overheat and fail prematurely. It can also disrupt air flow.
Gentle Cleaning: When cleaning the element itself, let it cool completely. Wipe it gently with a damp cloth. Avoid using abrasive scrubbers that can damage the protective coating.
Don’t Slam the Door: The heating elements are mounted to the oven walls. Slamming the door repeatedly can cause stress and vibration that may lead to early failure.

FAQ: Oven Heating Element Problems

Can an oven element work sometimes and not others?

Yes, this is possible but not common. An element with an intermittent fault may heat up one time and not the next. This is often due to a failing internal connection that makes contact only sometimes. If you suspect this, a multimeter test might catch it if the element is cold and the break in the circuit is present.

How long should an oven heating element last?

With normal use, a quality oven heating element should last between 5 to 10 years. Factors like how often you use the oven, how high you set the temperature, and how well you maintain it all effect its lifespan.

Is it safe to use the oven if the element is cracked?

No, it is not safe. A cracked element can pose a serious risk of electric shock. It can also cause sparks that may lead to an electrical fire. If you see any visible damage, stop using the oven immediately and replace the element.

Why did my new oven element burn out quickly?

A new element failing quickly often points to a different underlying problem. The issue could be a faulty oven thermostat causing the element to stay on too long, a short in the wiring, or a problem with the control board supplying incorrect voltage. It’s a good idea to have a professional check these other components if a new element fails.

Can I replace the oven element myself?

In most cases, yes. Replacing a bake or broil element is considered one of the easiest DIY appliance repairs. As long as you follow safety procedures by disconnecting the power and follow the simple steps of removing screws and disconnecting wires, most homeowners can handle it. If you are uncomfortable with electrical work, however, hiring an appliance technician is always a safe option.

How much does it cost to replace an oven heating element?

The cost varies. The part itself typically ranges from $20 to $50 for most common oven models. If you hire a professional appliance repair person, the total cost including labor and the part can range from $100 to $200 or more, depending on your location and the oven type.

Figuring out a broken oven doesn’t have to be a mistery. By looking for visible damage, checking for a glow, and doing a simple multimeter test, you can confidently diagnose a bad heating element. Remember, always prioritize safety by cutting the power at the breaker before any inspection or repair. With this knowledge, you can decide whether to make the fix yourself or call in a professional, getting your oven back to perfect baking temperature in no time.