What to Do When a Fuse Blows

Sometimes replacing a fuse isn’t as simple as unscrewing the old one and screwing in the new fuse.

Most homeowners have probably experienced some of their lights, outlets, and appliances suddenly shutting down. This typically occurs when they simultaneously turn on too many, overwhelming the fuse. The fuse responds by burning out, colloquially known as “blowing the fuse.”

Unfortunately, a burned-out fuse can’t be resolved by simply resetting it (as when the fuse trips). Instead, homeowners can follow the steps outlined in this guide to deal with it successfully.

Step 1: Turn everything off

One fuse typically controls only one circuit and, thus, one portion of the home. Homeowners should first identify the impacted section of the home and turn off everything in it. By everything, we mean all the light switches and plug-in appliances.

A great way to avoid blowing a fuse is to go easy on running too many appliances and lights simultaneously. If any of them keep working overtime, another burned-out fuse is inevitable.

Step 2: Check the fuse box

After securing the affected section, homeowners should head to the fuse box. Those who’ve experienced a blown fuse for the first time might not know where this gray box is. But don’t worry. Check the garage, basement, and utility room; its location should cease to be a mystery.

After opening the fuse box, homeowners should have no issues spotting the blown fuse. After all, burn marks, discolored glass, or melted wires aren’t exactly subtle.

Step 3: Remove the blown fuse

Replacement is the only remedy for a blown fuse. Naturally, for this to happen, the blown fuse must go. Before touching the fuse, homeowners should turn off the fuse box’s master switch and grab a flashlight. Then, they can safely and efficiently remove the affected fuse. This process usually involves taking out a few screws or brackets.

Step 4: Replace the fuse

Homeowners who’ve blown a fuse for the first time can use the old component to purchase an exact match for it.

After getting the replacement fuse, all that’s left is to screw it in. With the new fuse safely secured, homeowners can turn the master switch back on.

Step 5: Check appliances

Once it’s safe, homeowners should check all the affected appliances to ensure they work. If an appliance refuses to turn on, it might cause a blown fuse. Homeowners knowing the exact cause of the blown fuse is good news. The bad news is that the appliance is dead and needs replacement.

Optional step: Hire a professional

Sometimes replacing a fuse isn’t as simple as unscrewing the old one and screwing in the new fuse. Some fuse boxes call for cutting, rewiring, and other dangerous endeavors. Homeowners who get stuck here (or at any point in their mission to replace the blown fuse) should immediately contact a professional electrician to give them a hand.

When you need a licensed electrician for commercial or residential electrical needs, call Zimmerman Electric at 310-378-1323.