Riding Mower Keeps Blowing Fuses: What to do Next

Riding Mower Keeps Blowing Fuses

Mowing the lawn is a necessary yet sometimes tedious task. After a long day of mowing, the last thing you want to deal with is a broken riding mower. If your riding mower keeps blowing fuses, you may be scrambling to figure out why and how to fix it. In this article, we’ll take a look at what could be causing the issue, trouble shooting, and what the next steps should be if you’re unable to solve the problem.

Understanding Fuses

Before we dive into the cause of a blown fuse in a riding mower, it’s important to understand what a fuse does and how it works. Fuses are the self-resetting circuit breakers installed in electrical systems to protect the wiring, electric motor, and other components from an overload of electricity. This overload can cause the electrical circuits in the mower to short-circuit, resulting in an electrical fire.

When a fuse is in good working order, it will respond to a current overload by melting the metal connector in the middle, which will open the connection and stop the flow of current. This component is what’s known as a “blown fuse,” and it means that too much current is flowing through the circuit and must be stopped before further damage occurs.

Common Causes of Blown Fuses


The most common cause of a riding mower continuously blowing fuses is typically a problem with the wiring. The wiring, more specifically the circuit, could be shorted resulting in too much electricity flowing through it, causing the fuse to blow. It’s important to inspect the wiring for any signs of damage or corrosion since this could be the root cause of the problem.

Faulty Ignition Switch

Another potential reason your riding mower keeps blowing fuses could be an issue with the ignition switch. A faulty ignition switch can draw too much current resulting in the motor not being able to start. If there is a problem with the switch, it will cause the fuse to blow.

Other Electrical Issues

There are a few other electrical components under the hood that could potentially cause the riding mower to continuously blow fuses. This could include a failed solenoid, a bad starter, or bad spark plug. It’s important to inspect each of these components and make sure they’re in working order.

Troubleshooting a Riding Mower

In order to determine the cause of why your riding mower keeps blowing fuses, it’s important to take the time to properly troubleshoot the machine. Here are a few things you should do when trying to troubleshoot an issue with a riding mower.

Check the Fuses

The most obvious starting point when it comes to diagnosing an issue with a riding mower is to check the fuses. It’s important to make sure all the fuses in the machine are working properly. Start by checking the main fuse, which is typically located on or near the battery or the power switch box. If the main fuse is good, then move on to checking the other fuses in the machine.

Check the Wiring

Once you’ve checked the fuses and have determined that none of them are blown, it’s time to inspect the wiring for any potential problems. Look for any signs of wear, tear, fraying, or corrosion. It’s also important to make sure the wiring is connected securely and not loose. If you come across a damaged wire or a wire that is disconnected, then it’s imperative that it gets replaced.

Test the Ignition Switch

If the wiring and fuses seem to all be in working order, then it’s time to move on to testing the ignition switch. Testing the ignition switch involves using a multimeter to help determine the amount of current running through the switch. To do this, first make sure the switch is in the off position, then attach the multimeter probes to either side of the switch. If the results are not within the specified current range, then the switch will need to be replaced.

Inspect Other Electrical Components

If the ignition switch passes all of the tests, then it’s time to look at the other electrical components in the mower. This would include checking the solenoid, starter, and spark plug. Each component should be inspected for any signs of wear and tear, corrosion or loose connections. Additionally, you should test the current draw on each of these components in the same way you tested the ignition switch.

When to Call a Professional

After checking all the electrical components and inspecting the wiring, you may still have an issue where the mower keeps blowing fuses. If this is the case, then it’s time to call in a professional. A professional mechanic has the knowledge and experience to properly diagnose and repair the issue. They will be able to quickly identify the root cause of the issue, allowing you to get back to mowing your lawn in no time.


Having a riding mower that continuously blows fuses can be a frustrating and time-consuming issue to deal with. Taking the time to properly troubleshoot and diagnose the issue is the best way to get to the root cause of the problem. Start by checking the fuses and then move on to inspecting the wiring and all the other electrical components in the mower. If all else fails, it may be time to call a professional.