Breville Kitchen Appliances Toaster Oven Not Heating: How to Fix It Yourself
If your Breville toaster oven powers on but does not heat, the most likely causes are a dirty temperature sensor, a tripped thermal fuse, or a burned-out heating element. Start with a thorough cleaning — food buildup around the sensor can trick the oven into thinking it is already at temperature.
⚠️ Safety First
- Unplug the toaster oven and let it cool completely before touching anything inside.
- Do not touch the heating elements with bare hands — even when cool, skin oils can cause hot spots that shorten element life.
- Never operate the toaster oven with the door open or a crumb tray removed.
Parts You May Need
Step-by-Step Repair
- 1
Unplug and cool down completely
Pull the plug from the wall outlet. Wait at least 20 minutes for everything inside to cool down. Remove the crumb tray and any racks.
- 2
Clean the interior thoroughly
Wipe down the inside walls, ceiling, and floor of the oven with a damp cloth. Pay special attention to the area around the temperature sensor — it is a small metal probe usually located on the back wall. Grease and food residue on the sensor is a very common reason for heating problems in toaster ovens.
- 3
Inspect the heating elements visually
Look at the top and bottom heating elements. They should be intact with no visible breaks, dark spots, or sagging. If an element has a break in it, it is burned out and needs to be replaced. On most Breville models, you can see all the elements just by looking inside.
- 4
Check the door switch
Breville toaster ovens have a door switch that cuts power to the elements when the door is open. Open and close the door a few times and listen for a click. If you do not hear a click, the switch may be stuck or broken. Press the switch manually with your finger to see if the oven starts heating with the door closed.
- 5
Test with a multimeter (optional)
If you have a multimeter, unplug the oven and remove the back panel with a Phillips screwdriver. Test the thermal fuse for continuity — if it reads open (no continuity), it is blown and needs replacing. Also test each heating element. A good element will show low resistance. An open reading means it is burned out.
If That Didn't Work
- Blown thermal fuse from overheating
- Faulty thermostat or temperature control board
- Damaged door switch not engaging properly
- Loose wire connection inside the unit
When to Call a Professional
Breville toaster ovens are premium appliances worth repairing. If you cannot find the problem after cleaning and basic checks, contact Breville support. They have good customer service and may offer a replacement if the unit is within warranty. For out-of-warranty repairs, a small appliance repair shop can usually fix it for $40–$80.
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Disclaimer: This guide is for informational and educational purposes only and does not constitute professional repair advice. All repairs are performed at your own risk. RepairItFree.com is not liable for any personal injury, property damage, device damage, voided warranties, or other losses resulting from the use of this information.
If you are unsure about any step — especially anything involving electricity, gas, water, or refrigerant — stop and consult a qualified professional. Your safety is more important than saving money.
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