Why does my toaster keep blowing a fuse?

A toaster that keeps blowing a fuse is drawing more current than the circuit can supply, or the fuse is rated lower than the toaster’s wattage requires. The fix starts with the wattage the maker publishes for the appliance and the rating printed on the fuse or breaker.

Match the toaster’s wattage to the circuit

Every toaster oven on the Best Toaster Ovens for Small Kitchens and Air Frying guide lists a wattage in its published features, and that number tells you how much current the appliance will pull. The Breville BOV450XL Mini Smart Oven is rated at 1800 watts and 110 to 120 volts. The Cuisinart Toaster Oven Broiler is also rated at 1800 watts. The Elite Gourmet ETO236 is rated at 650 watts. The Hamilton Beach Easy Reach 4 Slice and the BLACK+DECKER 4-Slice Air Fry Toaster Oven do not publish a wattage in their feature lists, so this site has not compared their draw.

On a 120 volt circuit, an 1800 watt appliance draws 15 amps. A 15 amp fuse or breaker is the smallest size that will carry that load, and it will carry it only if nothing else is running on the same circuit. A 650 watt appliance draws about 5.4 amps, which leaves room for other items. If your fuse is 15 amps and the toaster is 1800 watts, the toaster alone sits at the limit, and any additional load on the circuit will blow the fuse.

Check what else is on the same circuit

Kitchen circuits often serve several outlets, and a toaster oven is one of the largest loads you can plug into one. The Breville and Cuisinart models at 1800 watts each draw 15 amps, so a coffee maker, electric kettle or microwave on the same circuit will push the total past a 15 amp fuse. The Elite Gourmet at 650 watts draws far less, but it can still blow a fuse if the circuit is already near its limit.

Move the toaster to a circuit with nothing else running, or run the toaster by itself. If the fuse holds when the toaster is the only load, the fuse was not too small for the toaster; the circuit was simply carrying more than its rating. The Hamilton Beach and BLACK+DECKER models do not publish wattage, so you cannot calculate their draw from the fact sheet. For those, the maker’s label on the appliance is the only figure to check.

Use the fuse or breaker rating the circuit requires

A fuse that blows repeatedly is doing its job if the circuit is overloaded. Replacing a 15 amp fuse with a 20 amp fuse on a 15 amp circuit is not a fix; it removes the protection the wire needs. The Breville and Cuisinart toaster ovens at 1800 watts are designed for a 15 amp circuit at 120 volts, and they will hold on a 15 amp fuse only when the toaster is the only load. The Elite Gourmet at 650 watts is well under a 15 amp limit.

If the fuse blows with the toaster as the only appliance on the circuit, the toaster itself may have a fault, or the fuse may be the wrong type for the circuit. The fact sheet does not publish fault information or fuse requirements beyond the voltage and wattage figures, so this site has not compared failure modes. The published voltage for the Breville is 110 to 120 volts, which matches a standard US outlet.

Inspect the cord, plug and outlet

A damaged cord or a loose plug can cause a fuse to blow, and that is separate from wattage. The fact sheet does not publish cord length or plug type for any of the five picks, so this site has not compared those figures. What the makers do publish is the wattage and voltage, and those numbers tell you whether the circuit is the likely cause. If the wattage is within the fuse rating and the fuse still blows, the cord, plug or outlet is the next thing to check.

The Breville BOV450XL publishes a 1 year limited product warranty, and the Cuisinart publishes a limited 3 year warranty. Those warranties cover defects, not overloaded circuits. A toaster that blows a fuse on a circuit that is correctly sized for its published wattage may have a defect, and the warranty is the route to address it. The other three picks do not publish a warranty period in their feature lists.

Keep the crumb tray and interior clean

A buildup of crumbs or grease inside a toaster oven can cause a short or a fuse to blow, and the makers publish cleaning features for each pick. The Breville BOV450XL has a pull out crumb tray and a non stick cavity coating for easy cleaning. The Hamilton Beach Easy Reach has a slide out crumb tray and a roll top door that is removable for cleaning. The BLACK+DECKER 4-Slice Air Fry Toaster Oven includes a removable crumb and drip tray. The Cuisinart Toaster Oven Broiler has a front removable crumb tray with a cool touch grip and a non stick interior. The Elite Gourmet ETO236 includes a non stick back pan and wire rack that slide out.

Cleaning the crumb tray regularly removes the material that can bridge electrical contacts or cause overheating. The fact sheet does not publish cleaning intervals, so this site has not compared how often each maker recommends cleaning. What the makers do publish is the tray type and coating, and those features exist to make the interior easy to clear. A toaster that blows a fuse after a period of use without cleaning may have debris inside, and the published cleaning features are the first thing to use.

Decide whether the toaster or the circuit is the problem

If the fuse blows only when other appliances run on the same circuit, the circuit is overloaded and the toaster is not at fault. If the fuse blows with the toaster alone and the fuse rating matches the published wattage, the toaster may have an internal fault. The Breville and Cuisinart at 1800 watts need a 15 amp circuit with no other load. The Elite Gourmet at 650 watts needs far less. The Hamilton Beach and BLACK+DECKER do not publish wattage, so you cannot make that comparison from the fact sheet alone.

The published figures give you the current draw for three of the five picks. For the other two, the maker’s label on the appliance is the only source. A fuse that blows repeatedly is a signal to check the load, not to install a larger fuse. The fact sheet does not publish electrical fault data, so this site has not compared failure rates. The safe step is to match the appliance’s published wattage to the circuit rating and remove other loads from that circuit.