Oven Not Heating? Common Causes and Fixes

Ronen Itzkovitch
Nov 8, 2025
12 min read

If your oven isn't heating, the problem often comes down to a few key issues:

Electric ovens: Faulty heating elements or misaligned temperature sensors.
Gas ovens: Igniter issues or gas line problems.
General issues: Electrical connection problems or damaged oven door seals.

Here’s what you need to know:

Electric ovens: Check if the heating elements glow red. If not, they might need replacing ($50–$100 CAD).
Gas ovens: If the igniter clicks but doesn’t ignite, it could be dirty or broken ($60–$150 CAD for replacement). Always turn off the gas supply if you smell gas.
Temperature sensor: A misaligned or damaged sensor can cause uneven heating. Replacing it costs $30–$60 CAD.
Electrical issues: Reset the circuit breaker if tripped. Frequent trips signal deeper problems needing a technician.
Door seals: Gaps or worn seals lead to heat loss. Replacements cost $20–$40 CAD and are easy to install.

DIY Fixes: Simple tasks like replacing heating elements, sensors, or seals are manageable with basic tools. Always disconnect power or gas before starting.

When to Call a Professional: For gas line repairs, electrical wiring, or control board issues, hire a licensed technician. Costs vary but ensure safety and compliance with Canadian standards.

Prevention Tips: Clean your oven regularly, inspect seals, and recalibrate the temperature annually. For complex issues, book a professional inspection to avoid costly breakdowns.

If repairs feel overwhelming, contact a trusted service like Total Care Appliance Repair in Toronto. They offer a 30-day warranty on parts and labour, with free diagnostics if you proceed with repairs.

Oven Not Heating - Troubleshooting | Repair & Replace

Why Your Oven Won't Heat Up

Let’s look at some common reasons why your oven might not be heating properly. Understanding these issues can save you both time and money.

Broken Heating Elements

In electric ovens, the bake and broil elements are responsible for generating heat. When working correctly, these elements glow red when powered. If they’re damaged, you might notice cracks, blisters, or dark spots, which can lead to uneven cooking - like one side of your dish being overdone while the other stays undercooked. Replacing these elements typically costs between $50 and $100 CAD. Since they operate under high voltage, it’s safer to let a professional handle the repair.

Gas Igniter and Gas Line Problems

Gas ovens rely on an igniter to light the burner. If the igniter isn’t working, you may hear clicking sounds but won’t see a flame. These problems can become more noticeable during Canadian winters. Additionally, issues with the gas line, such as leaks or blockages, pose serious safety risks. If you ever detect the smell of gas, turn off the supply immediately and call a licensed technician. Never attempt to fix gas lines yourself - it's not worth the danger.

Temperature Sensor Problems

The temperature sensor in your oven plays a key role in maintaining consistent heat. This small probe, usually located at the back of the oven, needs to be positioned at a 90-degree angle to function correctly. If the sensor is misaligned or damaged, your oven could underheat, overheat, or cycle on and off unpredictably. These issues can lead to longer cooking times or unevenly baked meals. Replacing a temperature sensor typically costs between $30 and $60 CAD and is a task many homeowners can tackle on their own.

Electrical Connection Issues

Most ovens in Canada operate on dedicated 240V circuits as part of dual voltage systems (120V/240V). A common problem is a tripped circuit breaker. Check your breaker panel and reset it if necessary. However, if the breaker trips repeatedly, there may be a deeper electrical issue. In older homes, blown fuses can also be a problem. Warning signs like discoloured outlets, burning smells, or loose connections should not be ignored - seek professional help right away, as these issues involve high voltage and can be dangerous.

Door and Seal Problems

A poorly sealed oven door can lead to significant heat loss. Check for gaps or damaged rubber seals. Some ovens also have a door lock lever used during self-cleaning cycles. If the lever remains stuck after cleaning, it can prevent the door from closing properly, causing further heat loss. Replacement seals are generally affordable, costing between $20 and $40 CAD, and many homeowners can install them with basic tools.

Next, we’ll explore how to diagnose these problems using the right tools.

How to Find the Problem

Diagnosing your oven's heating issue can be done safely with the right tools and a methodical approach. Here's how to get started.

Tools You'll Need

Before diving into any diagnostics, make sure you have the proper tools on hand. The digital multimeter is your go-to device - it measures both volts and ohms, and choosing one with both metric and imperial settings can be helpful. You'll also need insulated screwdrivers (flathead and Phillips), needle-nose pliers, and a flashlight to clearly inspect the interior of your oven.

It's a good idea to have common replacement parts ready, such as heating elements (ranging from $40–$120 CAD) and temperature sensors ($30–$80 CAD). This can save you an extra trip to the store if you discover a faulty component.

Don’t forget safety gear - wear gloves and eye protection when handling electrical components. Canadian ovens typically use 240V systems, which can be dangerous if mishandled.

Here's a quick reference for the tools and their purposes:

Tool/Equipment	Purpose	Estimated Cost (CAD)
Digital Multimeter	Measure continuity/voltage	$20–$60
Insulated Screwdrivers	Remove panels/components	$10–$40
Replacement Heating Element	Replace faulty element	$40–$120
Temperature Sensor	Replace damaged sensor	$30–$80

Testing Your Oven Step by Step

Start with the simplest check: inspect your circuit breaker. If it has tripped, reset it and test your oven again. While you're at it, examine the outlet for signs of damage like discolouration or melted plastic. These issues signal more serious electrical problems that require a professional's help.

For electric ovens, begin by visually inspecting the heating elements. Turn on the oven and check if the elements glow red. If they appear cracked or discoloured, they likely need replacing. To confirm this, disconnect power, unscrew and remove the element, and test it with your multimeter set to ohms (Ω). A reading of infinity means the element is broken, while a range of 20–50 Ω typically indicates it's functioning properly.

Next, test the temperature sensor. This component is usually located at the top rear of the oven cavity. Disconnect the power, unscrew the sensor's mounting bracket, and use your multimeter to check its reading. Compare the result with the manufacturer’s specifications - if it falls outside the normal range, the sensor needs replacing.

For gas ovens, proceed with extra caution. First, ensure the gas supply valve is open. Check for leaks by applying soapy water to the connections - bubbles mean there's a leak that requires immediate professional attention. Observe the igniter: it should glow brightly, and gas should ignite within a minute. If the igniter glows but no flame appears, the gas valve might be faulty. If the igniter doesn’t glow at all, it likely needs cleaning or replacement.

Lastly, don’t ignore the oven door and seal. A faulty seal can cause heat loss. Close the door and slide a piece of paper around its edges - if it moves easily, the seal isn’t doing its job. Also, check that the door closes completely and isn’t obstructed by debris.

Once you've completed these tests, follow proper safety procedures to ensure your repairs are secure.

Safety Rules During Testing

Always disconnect power before starting any diagnostics. For electric ovens, unplug the appliance or switch off the circuit breaker. For gas ovens, shut off the gas supply. If you smell gas, ventilate the area immediately and call a professional - never attempt repairs when gas is present.

Follow the Canadian Electrical Code and CSA standards for all electrical work. Don’t push beyond your skill level.

While testing, document your findings. Take photos of damaged parts and record multimeter readings. This can help a technician diagnose the issue more quickly if professional help is needed, potentially saving you money on diagnostic fees, which typically range from $90–$150 CAD in Canada.

If you encounter gas leaks, burning smells, or breakers that trip repeatedly, stop immediately and call a licensed technician. These are serious safety hazards that require expert attention.

DIY Fixes and When to Call for Help

Once you've pinpointed the issue with your oven, the next step is deciding whether you can handle the repair yourself or if it’s time to bring in a professional.

Repairs You Can Do Yourself

Before you start any repair, always disconnect the power or gas supply to your oven for safety.

Replacing heating elements is a manageable task that usually takes 30–45 minutes. To start, make sure you purchase the correct replacement part by using your oven's model number. Remove the old element by unscrewing its mounting brackets and disconnecting the terminals. Install the new one by reversing these steps. Heating elements typically cost between $40 and $120 CAD.

Temperature sensor replacement is also straightforward. These sensors are located at the back of the oven cavity and held in place by a simple mounting bracket. Unscrew the bracket, disconnect the wiring, and remove the sensor. To install the new one, follow the same steps in reverse. Sensors generally cost $30–$80 CAD and take about 20–30 minutes to replace.

Cleaning or replacing door seals is one of the easiest fixes. Use warm, soapy water and a soft cloth to clean the seal and remove any debris. If the seal is damaged, replace it with a new rubber gasket, which usually snaps into place without the need for tools. New door seals range from $25–$60 CAD.

Recalibrating your oven's temperature doesn’t require any new parts. Most ovens allow you to adjust the internal thermostat by ±15°C. Refer to your owner’s manual for the specific button combination - often holding the "Bake" and "Broil" buttons together. Use an oven thermometer to confirm the accuracy of the new settings.

For gas oven igniters, cleaning may be enough if the igniter isn’t completely broken. Use a soft brush to gently remove any debris, being careful with the ceramic surface. If a replacement is necessary, igniters cost $60–$150 CAD and take about an hour to install.

Repairs That Need a Professional

Some repairs go beyond DIY territory, especially when safety risks are involved. In these cases, calling a professional is the best choice.

Gas line work is strictly off-limits for homeowners. Repairs involving gas connections, valve replacements, or leaks must be handled by a licensed gas technician. In Ontario, this work must comply with TSSA (Technical Standards and Safety Authority) regulations.

Electrical panel connections or issues with 240V wiring should also be left to certified electricians. If your testing reveals problems with the main electrical connection or if circuit breakers trip repeatedly, it’s time to call an expert.

Control board and electronic component failures require specialized tools and knowledge to diagnose and fix. Attempting these repairs yourself can void your warranty and potentially cause more damage.

Internal gas valve replacement involves disconnecting gas lines and using specialized testing equipment to ensure everything operates safely. This is a job for a licensed technician.

If you notice gas odours, sparks, or recurring electrical problems, stop immediately and contact a professional.

Why Choose Total Care Appliance Repair

When your oven repair needs go beyond DIY, Total Care Appliance Repair is a reliable option.

Their certified technicians are experienced with all major oven brands, including Whirlpool, Samsung, LG, and Bosch, and can handle both gas and electric models with ease. Repairs are done safely and efficiently, ensuring your appliance is back in working order quickly.

Total Care Appliance Repair provides upfront pricing with no hidden fees. Every repair includes a 30-day warranty on both parts and labour, and they use original replacement parts to keep your oven running like new while maintaining its manufacturer warranty.

Serving Toronto and the surrounding areas, the company offers both scheduled and emergency services. Plus, their diagnostic service is free if you proceed with the repair, saving you the typical $90–$150 CAD diagnostic fee. For urgent situations, they even offer same-day service when available.

Founded by Ronen Itzkovitch, Total Care Appliance Repair focuses on extending the life of your appliances with eco-conscious repair solutions. This approach not only saves you money but also reduces waste. Their technicians often carry replacement parts, allowing them to complete most repairs in a single visit.

Keeping Your Oven Working Well

Once you've tackled any immediate repair needs, keeping up with regular maintenance is key to ensuring your oven runs smoothly and lasts longer.

Regular Cleaning and Inspections

Start by cleaning your oven after it has cooled. Use a damp cloth to wipe down the interior, and for tougher stains, apply a baking soda paste and scrub gently. Clean the door seals using warm soapy water, and check for any wear or gaps that might let heat escape. Take a moment to inspect the heating elements or burner ports for any signs of damage or buildup. Don’t forget to clean the oven racks, as this helps maintain proper air circulation and even cooking. These routine steps not only keep your oven looking good but also help it maintain consistent temperatures.

Ensuring Temperature Accuracy

To check if your oven’s temperature is accurate, place an oven thermometer on the middle rack and preheat to 180°C. If the thermometer shows a significant difference from the set temperature, it might be time to recalibrate the oven or call in a professional. For gas ovens, make sure the flame is mostly blue - this indicates proper combustion.

Scheduling Professional Maintenance

Booking an annual service with a certified technician is a smart move to catch hidden problems and keep your oven in top shape. Companies like Total Care Appliance Repair offer thorough maintenance services while focusing on eco-friendly practices, a principle upheld by their founder, Ronen Itzkovitch. Regular professional check-ups not only extend the life of your oven but also reduce the chances of unexpected breakdowns.

If you notice unusual noises, gas smells, or inconsistent heating, don’t wait - reach out to a professional right away. Keeping a maintenance log with dates, observations, and any repairs can also be handy during service visits.

Conclusion

Now that you’re familiar with the common causes of oven heating issues and their straightforward solutions, here’s how you can move forward.

Key Takeaways

Oven heating problems often arise from a handful of common culprits: faulty heating elements, malfunctioning gas igniters, inaccurate temperature sensors, electrical connection issues, or damaged door seals.

Troubleshooting doesn’t need to feel daunting. Using basic tools like a multimeter and following safety precautions, you can determine whether the issue is one you can tackle or if it requires professional help. Simple fixes, such as replacing a heating element or clearing burner ports, are manageable for most homeowners. However, tasks involving gas lines, intricate electrical components, or internal wiring are best left to certified technicians to ensure safety and proper repairs.

Preventive maintenance is your best ally in avoiding these problems altogether. Regularly clean your oven, monitor its temperature accuracy with an oven thermometer, and schedule professional inspections annually. These steps can help extend the lifespan of your appliance and catch minor issues before they escalate into costly repairs.

Next Steps for Toronto Homeowners

With these points in mind, it’s time to act. Start by following the troubleshooting steps outlined above to address basic issues.

If you encounter complex electrical problems, gas-related concerns, or feel unsure about handling repairs yourself, reach out to Total Care Appliance Repair. Their certified technicians, experienced with all major brands, provide reliable service and back their work with a 30-day warranty on parts and labour.

Founded by Ronen Itzkovitch, Total Care Appliance Repair prioritizes eco-friendly solutions and offers emergency services throughout Toronto and nearby areas. They even provide a free diagnostic call with a repair service, so you’ll know what’s wrong before committing to any fixes. For safe and effective oven repairs, contact Total Care Appliance Repair today.

FAQs

How can I check if my electric oven’s heating element needs to be replaced safely?

To determine if your electric oven's heating element needs to be replaced, the first step is to unplug the oven or turn off the circuit breaker to eliminate any risk of electrical shock. Once it's safe to proceed, examine the heating element carefully for any visible damage, such as cracks, scorch marks, or blistering. If there are no obvious signs of damage, you can use a multimeter to check for continuity. If the multimeter shows a reading of "OL" or infinite resistance, it means the element is no longer functioning and needs replacement.

Always prioritise safety when dealing with electrical appliances. If you're unsure about any part of the process or don't feel confident handling it, it's a good idea to reach out to a professional for help.

How can I tell if my gas oven has a leak, and what should I do if I suspect one?

If you suspect your gas oven might have a leak, the first thing you should do is shut off the gas supply to the appliance immediately. Next, open all windows and doors to let fresh air in and reduce the risk of gas build-up. It's also important to steer clear of using electrical devices or open flames anywhere near the area.

Here are some common signs of a gas leak:

A strong smell resembling sulphur or rotten eggs
A hissing noise coming from the gas line
Visible damage to the gas line or its connections

If you come across any of these warning signs, do not try to fix the problem on your own. Instead, get in touch with a certified appliance repair technician or your local gas company as soon as possible. Ensuring your safety should always come first.

How often should I get my oven professionally serviced to avoid heating problems?

To ensure your oven stays in top shape and avoids heating problems, it’s a good idea to arrange professional maintenance once a year. Regular check-ups can catch issues early - like worn-out heating elements or thermostat glitches - before they turn into expensive repairs.

For those who rely on their oven frequently, especially during the holiday season or other busy periods, more frequent inspections might be worth considering. Keeping up with routine maintenance not only helps your oven run efficiently and safely but also saves you time and energy over time.