When your dryer won’t start, it can disrupt your entire laundry routine. The good news is that many dryer starting problems are caused by simple issues you can identify and fix yourself—without calling a technician right away.
This article explains why a dryer won’t start, how to troubleshoot step by step, and when it’s time to seek professional help.
Common Reasons a Dryer Won’t Start
Before diving into repairs, it helps to understand the most frequent causes:
- No power supply or tripped breaker
- Door not fully closed or faulty door switch
- Start button or control panel failure
- Blown thermal fuse
- Faulty start switch or timer
- Defective motor or belt switch
Step‑by‑Step: How to Fix a Dryer That Won’t Start
1. Check the Power Supply
A dryer that appears dead may not be getting power.
What to do:
- Make sure the dryer is plugged in securely
- Check the circuit breaker—electric dryers use a 240‑volt breaker, which can partially trip
- Reset the breaker or replace blown fuses
✅ If the drum light turns on but the dryer won’t start, power is likely not the issue.
2. Make Sure the Door Is Fully Closed
Dryers are designed not to start if the door isn’t properly latched.
Troubleshooting steps:
- Close the door firmly until you hear a click
- Inspect the door latch for damage
- Test the door switch (a clicking sound usually indicates it’s working)
A faulty door switch is a common and inexpensive fix.
3. Test the Start Button or Control Panel
If nothing happens when you press Start, the switch may be defective.
Signs of a problem:
- Button feels loose or unresponsive
- No clicking sound when pressed
Solution:
- Unplug the dryer
- Test the start switch with a multimeter
- Replace if it shows no continuity
4. Check the Thermal Fuse
The thermal fuse prevents overheating and will stop the dryer from starting if it blows.
How to check:
- Unplug the dryer
- Locate the thermal fuse (usually on the blower housing)
- Test for continuity with a multimeter
❗ A blown thermal fuse must be replaced—not reset.
Also inspect and clean the vent system to prevent repeat failure.
5. Inspect the Belt Switch (If Equipped)
Some dryers won’t start if the drive belt is broken.
What to look for:
- Drum spins freely by hand
- No resistance when turning the drum
If the belt is broken, replace it and check the belt switch.
6. Examine the Timer or Electronic Control Board
A faulty timer or control board may prevent power from reaching the motor.
Symptoms:
- Dryer has power but won’t respond
- Timer doesn’t advance
Fix:
- Test timer contacts with a multimeter
- Replace the timer or control board if defective
This repair may be better handled by a professional due to cost and complexity.
7. Check the Motor
If all other components test fine, the motor may be the issue.
Warning signs:
- Humming sound when Start is pressed
- Burning smell
- Dryer previously stopped mid‑cycle
Motor replacement is typically a major repair and may not be cost‑effective for older dryers.
Dryer Won’t Start: Quick Troubleshooting Table
| Problem | Likely Cause | Fix |
|---|---|---|
| No lights or sound | No power | Reset breaker, check outlet |
| Lights on, won’t start | Door switch | Replace door switch |
| Clicking but no start | Start switch | Test and replace |
| Completely dead after overheating | Thermal fuse | Replace fuse, clean vent |
| Drum spins freely | Broken belt | Replace belt |
| Intermittent issues | Control board | Repair or replace |
Safety Tips Before Repairing a Dryer
- Always unplug the dryer before inspecting internal parts
- Turn off gas supply for gas dryers
- Use proper tools and follow manufacturer instructions
- If unsure, stop and call a technician
When to Call a Professional
Call a professional if:
- You suspect motor or control board failure
- The dryer is under warranty
- You’re uncomfortable working with electrical components
- Repairs exceed half the cost of a new dryer
Frequently Asked Questions
Can a clogged vent cause a dryer not to start?
Indirectly, yes. A clogged vent can overheat the dryer and blow the thermal fuse.
Why does my dryer click but not start?
This usually indicates a faulty start switch, door switch, or blown thermal fuse.
Is it worth fixing an old dryer?
If the repair cost is high and the dryer is over 10 years old, replacement may be more cost‑effective.
Final Thoughts
If your dryer won’t start, the problem is often something simple like a power issue, door switch, or thermal fuse. With careful troubleshooting, many of these issues can be resolved quickly and affordably.
By following this guide, you can identify the cause, decide whether it’s a DIY fix, and know when it’s time to bring in a professional—saving both time and money.
