Quick answer
First, confirm the dryer has power and the circuit breaker hasn't tripped. Check the thermal fuse and door switch for faults. If these don't resolve the issue, replace the motor or call a professional.
Confirm the symptom
- Dryer doesn't start when you press the start button
- No noise or lights when you turn it on
- Power outlet works but dryer remains off
Tools and prep
- Screwdrivers (flathead and Phillips)
- Multimeter for testing electrical components
- Owner's manual for dryer model
- Work gloves and safety glasses
- Small parts container for screws
Step-by-step troubleshooting
- Check Power SupplyDo: Verify the dryer is plugged in and the outlet is working. Test the outlet with another appliance.Observe: Outlet powers other devices normally.Means: Power supply is not the issue.Next: Check circuit breaker
- Check Circuit BreakerDo: Locate the electrical panel and check the breaker for the dryer. Reset if tripped.Observe: Breaker is in the 'on' position and hasn't tripped.Means: Electrical supply is stable.Next: Inspect door switch
- Inspect Door SwitchDo: Open and close the dryer door while using a multimeter to check continuity in the door switch.Observe: Multimeter shows no continuity when the door is closed.Means: Door switch is faulty.Next: Replace door switch
- Test Thermal FuseDo: Locate the thermal fuse (usually on the exhaust duct) and test it with a multimeter for continuity.Observe: Multimeter shows no continuity.Means: Thermal fuse is blown.Next: Replace thermal fuse
- Check MotorDo: Unplug the dryer. Test the motor with a multimeter for continuity between the terminals.Observe: No continuity in the motor windings.Means: Motor is faulty.Next: Replace motor
- Test Start SwitchDo: Use a multimeter to test the start switch for continuity when pressed.Observe: No continuity when the switch is pressed.Means: Start switch is defective.Next: Replace start switch
- Inspect Timer MotorDo: Test the timer motor with a multimeter for continuity.Observe: No continuity in the timer motor.Means: Timer motor is faulty.Next: Replace timer motor
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Tripped Circuit Breaker Overload or short circuit in the dryer circuit. | Common | Easy | None |
| Blown Thermal Fuse Overheating due to lint buildup or blocked exhaust. | Common | Easy–Medium | Thermal fuse |
| Faulty Door Switch Switch not closing properly when the door is shut. | Common | Easy | Door switch |
| Defective Start Switch Switch fails to send power to the motor. | Sometimes | Easy | Start switch |
| Failed Motor Motor windings are burned out or internal components are damaged. | Sometimes | Medium | Dryer motor |
| Faulty Timer Motor Timer motor doesn't advance the cycle. | Rare | Hard | Timer motor |
| Power Supply Issues Loose or damaged wiring in the outlet or dryer cord. | Rare | Medium | Dryer power cord |
Parts matching
Common replacement parts for a dryer not turning on include:
- Thermal fuse
- Door switch
- Start switch
- Dryer motor
- Timer motor
- Dryer power cord
Always match the part to your dryer model using the owner's manual or model number for compatibility.
When to call a professional
- You're uncomfortable working with electrical components
- The dryer still doesn't work after replacing all common parts
- You smell burning or notice sparks during testing
- The dryer is under warranty and you don't want to risk voiding it
- You lack the tools or experience to safely complete repairs
FAQ
Why is my dryer not getting power?
Check the outlet, circuit breaker, and power cord for issues. A blown thermal fuse can also cut power to the dryer.
Can a bad door switch prevent the dryer from starting?
Yes, if the door switch isn't closing properly, the dryer won't start. Test it with a multimeter and replace if needed.
How do I know if the thermal fuse is blown?
Use a multimeter to test for continuity. If there's no continuity, the thermal fuse is blown and needs replacement.
Is it worth replacing a dryer motor?
Replacing a motor can be costly. Consider the dryer's age and cost of the motor before deciding. Sometimes it's more economical to replace the entire unit.
What should I do if the dryer starts but doesn't heat?
Check the heating element and thermostat instead. This is a separate issue from the dryer not turning on.