Troubleshooting a Dryer That Won’t Start: A Step-by-Step Guide

A dryer that refuses to start can be a frustrating experience, especially when you have a pile of laundry waiting to be dried. Before calling a repair person, there are several common issues you can troubleshoot and potentially fix yourself. This guide will walk you through a step-by-step process to identify the problem and get your dryer back in working order.

1. Check the Basics

Start by ensuring the obvious is covered:

• Is the dryer plugged in? Double-check the power cord and outlet.
• Is the circuit breaker tripped? Check your electrical panel for tripped breakers.
• Is the dryer door closed securely? Most dryers have a safety switch that prevents operation if the door isn’t fully closed.
• Is the timer or control knob set properly? Make sure the dryer is set to the desired cycle and the timer is not in the ‘off’ position.

2. Lint Buildup

Lint accumulation is a common culprit for a dryer that won’t start. Excess lint can block the dryer’s venting system, preventing proper airflow and overheating the appliance. This can trigger a safety mechanism that shuts the dryer down.

Here’s how to clean the lint trap:

1. Locate the lint trap: It’s usually located inside the dryer door or on the front panel.
2. Remove the lint trap: Carefully pull the lint trap out.
3. Clean the lint trap: Use a brush or your fingers to remove any lint from the trap.
4. Clean the lint trap housing: Use a vacuum cleaner with a crevice attachment to remove any lint from the inside of the lint trap housing.
5. Replace the lint trap: Push the lint trap back into its place, ensuring it’s securely in position.

3. Faulty Door Switch

The door switch is a safety feature that prevents the dryer from operating if the door is ajar. If the door switch is faulty, it may not detect the closed door, preventing the dryer from starting.

To test the door switch:

1. Locate the door switch: It’s usually found on the dryer door frame or inside the dryer door.
2. Disconnect the power: Unplug the dryer or turn off the circuit breaker.
3. Test the switch: Use a multimeter to check the continuity of the door switch. If it’s not conducting electricity, the switch is faulty.

If the door switch is faulty, you’ll need to replace it. You can find replacement door switches online or at a local appliance store.

4. Broken Belt

The dryer belt is responsible for turning the drum. If the belt breaks, the drum won’t rotate, and the dryer won’t start. You can usually see the belt by removing the back panel of the dryer.

To check the belt:

1. Disconnect the power: Unplug the dryer or turn off the circuit breaker.
2. Remove the back panel: Use a screwdriver to remove the screws holding the back panel in place.
3. Inspect the belt: Examine the belt for any signs of damage, such as cracks, tears, or fraying.

If the belt is broken, you’ll need to replace it. You can find replacement dryer belts online or at a local appliance store.

5. Faulty Thermal Fuse

A thermal fuse is a safety device that prevents the dryer from overheating. If the thermal fuse blows, the dryer won’t start. You can usually find the thermal fuse on the back of the dryer near the heating element.

To test the thermal fuse:

1. Disconnect the power: Unplug the dryer or turn off the circuit breaker.
2. Locate the thermal fuse: Look for a small, round fuse with two wires attached to it.
3. Test the fuse: Use a multimeter to check the continuity of the thermal fuse. If it’s not conducting electricity, the fuse is blown.

If the thermal fuse is blown, you’ll need to replace it. You can find replacement thermal fuses online or at a local appliance store.

6. Faulty Motor

The dryer motor is responsible for powering the drum. If the motor fails, the dryer won’t start. A faulty motor is usually a sign that the dryer is nearing the end of its lifespan. If you suspect the motor is the problem, it’s best to call a professional repair person.

7. Additional Tips

• Check the dryer vent: A blocked dryer vent can restrict airflow and cause the dryer to overheat, leading to a safety shutdown. Ensure the vent is clear and unobstructed.
• Reset the dryer: If your dryer has a reset button, try pressing it to see if it resolves the issue.
• Consult the owner’s manual: Your dryer’s owner’s manual may provide specific troubleshooting tips for your model.
• Call a professional: If you’re unable to identify the problem or fix it yourself, it’s best to call a qualified appliance repair technician.

By following these steps, you can troubleshoot and potentially fix a dryer that won’t start. Remember to always disconnect the power before working on any appliance.