What Causes a Fuse to Blow on an Electrical Panel?

Electrical issues occasionally disrupt the main service panel, leading to a blown fuse, which causes some home areas to lose power.

An electrical system comprises several essential components, and fuses are responsible for keeping homes and households safe from electrical shock and fires. Unfortunately, electrical issues occasionally disrupt the main service panel, leading to a blown fuse, which causes some home areas to lose power.

Please keep reading to learn about the common causes of blown fuses and how professional assistance can help homeowners protect their properties.

How to identify a blown fuse

A telltale sign that homeowners are dealing with a blown fuse is loss of power in the home. Once electrical issues occur, they trigger the circuit breaker, a component that cuts off power to prevent further damage.

Another way to identify a blown fuse is by its appearance. Most people usually notice slight charring.

What causes a fuse to blow on an electrical panel?

Now let’s examine what causes fuse problems:

Overloaded circuit

When the circuit breaker trips, an overloaded circuit is likely the culprit. It occurs when the breaker tries to pull more power than it can carry. For example, if too many appliances and devices are operating simultaneously, the breaker’s internal mechanism heats up, and a spring-loaded element usually trips the breaker.

When the panel blows a fuse, it’s a protective measure that prevents the breaker from reaching dangerous temperature levels.

A short circuit

A short circuit is a severe issue that leads to lower resistance and a sudden and uninterrupted rush of electricity. These changes in flow trigger the breaker, activating its tripping mechanism.

Wiring problems in devices and appliances can also cause a short circuit. Either way, diagnosing the issue can be challenging without the necessary skills and experience. Those who suspect their electrical panel is malfunctioning should immediately reach out to a professional electrician. They’ll assess the situation safely and suggest the most cost-effective solutions.

Damaged wiring

Wiring is often hidden behind walls, which is why many forget that damaged wires can result in a blown fuse. Those who use several extension cords and notice buzzing or funny odors should contact an expert before the problem leads to costly and time-consuming repairs.

Arc fault

An arc-fault circuit interrupter (AFCI) may trip due to short circuits and overloads, but it can also malfunction because of power fluctuations within a wire connection. Repeated arcing typically indicates trouble with wiring.

Moisture buildup

When excess moisture reaches the wiring, it can cause a multitude of problems, including short circuits. Unless homeowners act quickly, moisture could enter the panel and eat away at the circuit breaker.

Keep the electrical system in good condition

People who suspect their electrical panel is struggling to work correctly should contact a professional and schedule an appointment. A qualified electrician will identify underlying issues, solve them quickly, and optimize the electrical panel.

Evenflow Home and Commercial Services of San Antonio offers impeccable house cleaning services, professional plumbing, electrician services, HVAC installation, maintenance, and repair. Our technicians offer  24-hour emergency electrical and HVAC service for San Antonio, Schertz, Converse, Floresville, Elmendorf, and more. Call us at (210)941-3503.