Top 15 Reasons Why Your Dryer Won't Start

Dryers are an essential part of modern laundry routines, but when they don’t start, frustration quickly sets in. A non-starting dryer can be caused by various issues, ranging from simple fixes like plugging the power cord back in or shutting the dryer door fully to more complex repairs such as replacing the thermal fuse.

When you’re searching for answers to "why won’t my dryer start," you’re in the right place. Here’s a comprehensive guide to the top 15 reasons why your dryer won’t start and what you can do to troubleshoot each issue.

Electrical Power Issues

Power issues are often fairly simple to resolve on you own but some problems do require the help of an electrician. When your dryer is completely dead, you may be facing one of these issues.

1. Power Cord Unplugged

Sometimes, the simplest explanation is the correct one. If your dryer’s power cord is unplugged or loosely connected to the outlet, it won’t start.

Ensure the cord is securely plugged in before moving on to more complex issues.

2. Power Cord Wiring Bad

A damaged power cord can prevent electricity from reaching your dryer.

Unplug the dryer and inspect the cord for frayed wires, cracks, or other visible damage. Replace the cord if necessary to restore proper electrical flow.

For an electric dryer, check the power cord wiring connection on the terminal block on the back of the dryer (with the power cord still unplugged).

Use the installation guide for your dryer as a guide when checking the power cord wiring connections on the terminal block.

As an example, here’s an image from dryer installation instructions that shows the power cord should be connected to the terminal block on a common electric dryer:

Follow the guidance in the installation guide for your specific dryer if it differs from this example image.

3. House Circuit Breaker Tripped

Dryers require a significant amount of electrical power. If your dryer’s circuit breaker has tripped, reset it in your home’s electrical panel.

If it trips repeatedly, consult an electrician to address the underlying issue or schedule dryer repair service to have a technician find and fix the internal electrical short in the dryer that’s causing the breaker to trip.

4. Bad Electrical Outlet

An unresponsive dryer might be plugged into a faulty electrical outlet.

For a gas dryer, test the outlet by plugging in another device. If the outlet isn’t working, you’ll likely need to call an electrician to repair or replace it.

You can’t test the electrical outlet for an electrical dryer unless you have a voltage meter and know how to safely use it to check for proper voltage at the outlet. Checking live voltage is dangerous. If you suspect that the electrical outlet for an electric dryer is bad, we recommend that you have an electrician check the outlet or schedule dryer repair service to have a technician examine the outlet and dryer to find the cause of the power issue.

Dryer Control Issues

Problems with the dryer timer or the electronic control board in the control panel can prevent the dryer from starting. A defective control panel or bad push-to-start switch can also cause dryer starting problems.

5. Bad Electronic Control Board

The electronic control board manages many of the dryer’s functions. If it’s faulty or locked up, your dryer won’t start.

A power surge or glitch through the electrical power lines going to your home can sometimes freeze up the control board so it won’t operate. Brown outs can do the same thing.

Resetting the electronic control board can sometime restore normal dryer operation. Reset the control board using this procedure:

1. Unplug the power cord to completely disconnect electrical power from the dryer.
2. Leave the power off for 2 minutes.
3. Plug the power cord back in to restore electrical power.

The electronic control board will reboot and the dryer may begin working normally again.

If not, you may need to have the dryer serviced by a technician if the other troubleshooting tips in this article don’t help you resolve the starting problem.

6. Control Timer Defective

The control timer does the same thing as an electronic control board, it manages dryer functions. A defective timer can prevent the dryer from starting.

For gas and electric dryers that use control timers, we’ve created safe and practical troubleshooting videos to walk you through complete diagnosis of dryer starting failures (including control timer testing).

For electric dryers, follow the expert DIY troubleshooting tips in this video to find and fix the cause of starting problems:

Use the troubleshooting steps in this video to diagnose and fix a gas dryer not starting:

Using the systematic approaches described in these videos can help you find and fix starting problems on your own in common dryers that use a control timer.

If you’re unable to find and fix the problem yourself, it’s likely time to schedule appliance repair.

7. Failed Push-to-Start Switch

The push-to-start switch activates the dryer’s motor when pressed.

A malfunctioning switch will prevent the dryer from starting. You can test this switch as shown in the above troubleshooting videos and replace it if it’s faulty.

8. Defective Control Panel

A control panel failure can render the dryer’s buttons and settings unresponsive. Some dryers won’t start if a control button is stuck and of course the dryer won’t start if the start button on the control panel is defective.

Firmly press all the control panel buttons (including the start button) to see if you can free up a stuck button. If not, you’ll likely need to replace the control panel. Be sure that you unplug the dryer before accessing and replacing internal dryer components. Have a service technician replace the control panel if you’re not completely confident that you can replace that dryer component yourself.

Loose wiring connections or damaged wires can also prevent the control panel from working properly and starting the dryer. Unplug the dryer and remove the top dryer panel. Inspect the control panel for damaged wires or loose wiring connections. Reconnect any loose wires and repair damaged or broken wires. You can also replace the entire control panel wire harness if you find damaged wires and that replacement part is available for your dryer.

Dryer Drive Motor Circuit Failures

9. Blown Thermal Fuse in an Electric Dryer

The thermal fuse protects your dryer from overheating. If the fuse blows, it cuts off power to the dryer motor in most electric dryers, preventing the dryer from starting.

Unplug the dryer and follow the tips shown in the troubleshooting video provided above to check the thermal fuse.

Replace the fuse if it’s blown, but also inspect the dryer for exhaust airflow problems that likely caused the dryer to overheat and blow the thermal fuse. Failing to fix underlying problems causing a blown thermal fuse may result in the fuse blowing again shortly after you replace it.

10. Wiring Failure

Damaged or disconnected wiring inside the dryer can interrupt the electrical flow to the drive motor.

Unplug the dryer and inspect the wiring for burns, frays, or loose connections, especially near the motor and control board or timer. Repair or replace damaged wires.

If you suspect internal wiring failures are preventing your dryer from running and you’re unable to find and/or fix wiring problems yourself, have a service technician repair your dryer.

11. Bad Drive Motor

The drive motor rotates the drive belt to spin the dryer drum.

If the drive motor is defective, the drum won’t rotate when you press the start button or push-to-start switch.

You’ll typically need to have a service technician diagnose and repair a dryer drive motor failure.

12. Door Switch Failure

Dryers are designed not to run if the door is open.

A faulty door switch might not detect when the door is closed, preventing the dryer from starting.

Unplug the dryer and test the door switch with a multimeter as shown in the above troubleshooting videos. Replace the door switch if it’s defective.

13. Broken Drive Belt

The drive belt rotates the drum. If the belt is broken, the drum won’t spin.

Some dryers have a switch that detects a broken drive belt. The dryer won’t start when the belt switch detects a broken belt.

Check for a broken drive belt and replace it if needed.

Here’s a video that shows how to replace the dryer belt in a common type of clothes dryer:

14. Bad Motor Centrifugal Switch

For dryers with a control timer and a push-to-start switch, the motor centrifugal switch completes the electrical circuit to keep the drive motor running when you release the push-to-start switch.

If the motor runs while you press the push-to-start switch but stops as soon as you release that button, then the motor centrifugal switch is likely defective. Unplugging the dryer and replacing the motor centrifugal switch will likely fix your starting problem in that scenario.

Have a service technician diagnose and fix your dryer if you’re unable to fix this type of failure yourself.

15. Dryer Error Codes

Modern dryers often display error codes when they detect issues.

Many dryers won’t send electrical current to the drive motor when the electronic control detects certain problems and displays an error code on the control panel.

Refer to your dryer’s user manual to interpret the code and identify the problem. Follow the troubleshooting tips in the manual to resolve the starting issue.

Error code and troubleshooting information is often limited in owner’s manuals. If you see an error code not addressed in the manual for your dryer, look up the error code on our Dryer Error Code Chart and follow the safe DIY troubleshooting tips provided.

Many codes point to issues like control failures, wiring, overheating or sensor failures.

If you’re unable to resolve the cause of an error code on your own, schedule service and we’ll send a Sears Home Services technician to your home to repair your dryer.

A non-starting dryer can stem from a variety of causes, ranging from minor fixes like plugging in the power cord to major issues like replacing a control board. Always prioritize safety by unplugging your dryer before attempting any repairs. If troubleshooting doesn’t solve the issue, it’s wise to schedule dryer repair service.

For ongoing peace of mind, consider investing in a home warranty plan that covers appliance repairs.

Regular dryer maintenance and proactive care can also extend your dryer’s lifespan, helping you avoid breakdowns in the future.

Sears Home Services is always standing by to help you when you encounter problems with your clothes dryer or any other home appliance. Our experienced technicians can fix appliances quickly so you can continue safely enjoying your home.