7 Causes of Dryer Fires and How to Prevent Them

1. Lint Buildup

According to research, nearly a third of dryer-related fires begin when lint, dust, or fibers catch fire. When the lint trap isn’t cleaned out often, debris can collect and, over time, become a fire hazard due to the intense heat produced during drying cycles.

The Solution

Always clear the lint filter whenever you take clothes out of the dryer. This simple habit helps stop lint from collecting, reducing the risk of a fire starting inside the machine.

2. Clogged Ducts and Vents

The vent pipe that carries air from your dryer to the outside can become blocked by lint or even small pieces of clothing. Sometimes, animals like rodents may nest inside, drawn by the warmth and shelter. If your laundry is drying slowly or there’s no warm air from the outside vent, it might be a sign that the vent system is blocked.

The Solution

Take off the dryer vent hose and give it a thorough cleaning, then reattach it securely. It’s also a good idea to check the outdoor vent to make sure nothing is blocking it. If you think an animal may have gotten inside, it’s best to contact a local wildlife expert who can safely handle the situation and properly clean the space.

3. Crushed Vents

Placing the dryer too close to the wall can flatten the exhaust hose, restricting airflow. Sometimes the vent may become kinked or bent, creating spots where lint can collect. When hot air can’t escape properly, that trapped heat combined with built-up lint can become a fire risk.

The Solution

Take time now and then to check the dryer vent hose for any signs of damage, like pinching, bending, or collapsing. If you notice an issue, gently move the dryer away from the wall to help the hose return to its proper shape. If the damage is too severe, consider installing a new vent hose or reaching out to a nearby technician for help.

4. Mechanical or Electrical Failure

Devices that rely on electricity and moving parts can sometimes pose a fire hazard. If something goes wrong inside the dryer, like a wiring issue or a mechanical failure, it could spark a fire unexpectedly.

The Solution

To help avoid electrical problems, it’s best to have your dryer set up by a qualified technician. Scheduling a yearly checkup with a repair specialist can also keep things running smoothly. If you ever notice an unusual burning smell or strange sounds during a cycle, switch the dryer off right away and contact an SD Appliance Repair professional.

5. Flammable Liquids

Do not put clothes or fabrics that have been soaked with flammable substances—like gasoline, oil, or certain cleaners—into the dryer. These residues might not wash out completely and could catch fire when heated.

The Solution

For garments stained with flammable substances, it’s safest to wash them by hand. You might need to repeat the washing process to fully remove the residue. Afterward, let them air dry instead of using the dryer to keep them away from heat.

6. Improper Use

Putting items like plastic, rubber, or foam in the dryer, such as a bath mat with a rubber underside, can lead to overheating and increase the risk of a fire inside the dryer.

The Solution

Here’s an easy rule to follow: avoid drying anything in the machine that’s meant to dry naturally in the air.

7. Overheating

Several factors can cause a dryer to get too hot, including accumulated lint, electrical problems, mechanical failures, a broken thermostat, or drying inappropriate materials.

The Solution

If your dryer seems to be getting excessively hot, switch it off right away. You can try simple fixes like clearing out the lint filter and inspecting the vent or duct for blockages. If the problem appears resolved, you can restart the dryer, but if you notice a burning smell, stop using it and contact a professional for help.

When to Call a Pro

Although you can try basic troubleshooting if your dryer seems less effective, keep in mind that it involves electricity and high temperatures, which can be dangerous. If you can’t identify the problem, but the dryer isn’t working right, it’s best to call an SD Appliance Repair professional. Scheduling an annual inspection by a technician can also help keep your dryer clean and catch any mechanical or electrical problems early.

How to Prevent Dryer Fires

Dryer fires can sometimes happen due to electrical issues or mechanical problems, but there are several steps you can take to lower the risk:

• Always remove lint from the filter after each drying cycle
• Regularly inspect the outdoor vent and clear away any buildup
• Ensure the vent hose is straight and not pinched or damaged
• Watch for signs of blockages and hire a professional to clean the duct if needed
• Only put items in the dryer that are safe for machine drying
• Arrange for an expert to check your dryer once a year
• Keep a fire extinguisher or fire blanket nearby in the laundry area in case of emergency