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Fix a dryer that will not start

We'll check power, door switch, thermal fuse, and start switch—or tell you when to call a pro.

Troubleshooting · Home appliances
15–45 min
What you'll need
  • Multimeter (for continuity tests on thermal fuse and start switch)
  • Screwdriver set (Phillips and flathead)
  • Replacement thermal fuse (if tests show it is blown)
Step 1 of 9

Quick triage — pick your path

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Choose the option that matches what you see. You can jump straight to that section.

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Steps

Goal: Confirm the symptom, then isolate the fault—power, door, thermal fuse, or control.

  • Select a timed dry cycle and press start. If nothing happens—no lights, no drum turning, no sound—the dryer does not start.
  • Symptom confirmed: Nothing happens when you press start. Proceed to Verify plug.
  • No problem: The dryer runs (drum turns). If the air stays cold, see Fix a dryer that will not heat. If the drum does not turn, see Fix a dryer that will not tumble.

Verify plug

Goal: Rule out an unplugged or loose power cord.

  • Check that the power cord is firmly plugged into the outlet. Electric dryers use a thick cord with a four-prong or three-prong plug; gas dryers use a standard plug. Push the plug in until it seats. Try starting the dryer again.
  • Good: Plug is secure. Proceed to Check power.
  • Bad: Plug was loose—secure it and test. If still no start, proceed to Check power.

Check power

Goal: Rule out a tripped breaker or dead outlet before opening the dryer.

  • Locate the circuit breaker for the dryer. Electric dryers use 240 volts; both legs must be on. If the breaker is tripped, flip it fully off then on. If it trips again immediately, call an electrician.
  • Unplug the dryer and test the outlet with a lamp or phone charger. If the outlet is dead, the problem is upstream.
  • Good: Breaker is on and outlet works. Proceed to Check for delay start.
  • Bad: Breaker trips repeatedly or outlet is dead—fix power first or call an electrician.

Check for delay start

Goal: Rule out delay start before opening the dryer.

  • Check if delay start is set on the display. If so, cancel it or wait for the programmed time. When no delay is set, the start button should work.
  • Good: No delay. Proceed to Check door switch.
  • Bad: Delay was the cause—cancel and test. If still no start, proceed to Check door switch.

Check door switch

Goal: Confirm the door closes fully and the door switch engages.

  • Close the door firmly. Listen for a click from the door switch. Check for obstructions or a bent latch.
  • If the door does not latch or the switch does not engage, the dryer will not start. Clear obstructions, straighten the latch, or replace the switch.
  • Good: Door latches and switch clicks. Proceed to Thermal fuse.
  • Bad: Latch or switch faulty—fix or replace, then test.

Thermal fuse

Goal: Test the thermal fuse and replace if blown.

  • Unplug the dryer. Locate the thermal fuse (small white or silver cylinder, often near the exhaust duct—consult your manual).
  • Use a multimeter to test for continuity. If the fuse has no continuity, it has blown—replace it with an exact match.
  • Good: Fuse has continuity. Power, door, and fuse all check good—start switch or timer/control board has failed. Call a pro.
  • Bad: Fuse blown—replace and test. If it blows again quickly, there is an overheating fault (e.g. clogged vent)—call a pro.

When to get help

If you smell gas, evacuate immediately. Do not turn on lights or appliances. Call 911 or your gas utility from outside. Do not call a technician for an active gas leak—that is an emergency.

Call an appliance technician if:

  • The circuit breaker trips repeatedly (call an electrician for that).
  • The timer or control board has failed.
  • You have checked power, door, and thermal fuse and the dryer still does not start.
  • You are not comfortable working with electrical components.

Verification

  • The dryer responds when you press start—lights come on, drum turns, or you hear the motor.
  • The door closes and latches properly; the door switch engages with a click.
  • No repeated breaker trips when the dryer runs.
  • The thermal fuse has continuity (if you tested it) or the dryer runs after replacement.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Confirm symptom Verify the dryer does nothing when you press start; rule out a different problem (e.g. runs but does not heat).
  2. Power Check the circuit breaker and outlet; reset or test with another device.
  3. Door switch Inspect the door switch; check that the door closes fully and the switch engages.
  4. Thermal fuse Test the thermal fuse for continuity; replace if blown.
  5. Call a pro Timer or control failure, repeated breaker trips—call an appliance technician or electrician.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • Whether the breaker is tripped
  • Outlet test result
  • Door switch condition
  • Thermal fuse test result
  • Steps already tried

Does the dryer fail to start when you press start?

Select a timed dry cycle and press start. If nothing happens—no lights, no drum, no sound—the dryer does not start.

Select a cycle and press start. Symptom confirmed: nothing happens—no lights, no drum, no sound. No problem: dryer runs (drum turns)—see Fix a dryer that will not heat if no heat, or Fix a dryer that will not tumble if the drum does not turn.

Symptom confirmed No problem

You can change your answer later.

No action needed

The dryer starts and runs. No further action required for this problem.

Done

Is power reaching the dryer?

Check the circuit breaker and outlet. Reset the breaker if tripped; test the outlet with a lamp or phone charger.

Check the circuit breaker—reset if tripped. Test the outlet with another device. Breaker trips again: call an electrician. Outlet dead: fix breaker or wiring. Power good: proceed to door switch.

Yes No

You can change your answer later.

Fix power and test

Reset the circuit breaker or repair the outlet. Plug the dryer back in. Press start. If it starts, the problem was power. If it still does not start, return to this guide and proceed to door switch.

Done

Does the door switch engage when you close the door?

The door must close fully and the door switch must engage for the dryer to start.

Close the door firmly. Listen for a click from the door switch. Check for obstructions or a bent latch. Engages: proceed to thermal fuse. Does not engage: fix or replace latch or switch.

Yes No

You can change your answer later.

Fix door switch or latch and test

Clear obstructions, straighten a bent latch, or replace the door switch. Close the door and press start. If it starts, the problem was the door. If it still does not start, return to this guide and proceed to thermal fuse.

Done

Does the thermal fuse have continuity?

A blown thermal fuse cuts power to the motor and control. Test with a multimeter.

Unplug the dryer. Locate the thermal fuse. Test for continuity with a multimeter. No continuity: replace with exact match. Continuity: start switch or timer/control has failed—call a pro.

Yes No (blown)

You can change your answer later.

Replace thermal fuse and test

Replace the thermal fuse with an exact match. Restore power and press start. The dryer should start. If it blew again quickly, there is an overheating fault (e.g. clogged vent)—call a pro.

Done

Call a technician

Call an appliance technician if: the circuit breaker trips repeatedly (electrician for that); the timer or control board has failed; you have checked power, door, and thermal fuse and the dryer still does not start; or you are not comfortable working with electrical components. If you smell gas, evacuate and call 911 or your gas utility from outside.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would a dryer not start at all?
Common causes: tripped circuit breaker, dead outlet, unplugged cord, faulty door switch, blown thermal fuse, or failed start switch, timer, or control board. Check power and door first, then thermal fuse and start switch.
Can I fix a dryer that will not start myself?
Yes. You can check and reset the breaker, test the outlet, inspect the door switch, and test or replace the thermal fuse with basic tools. If the timer or control board has failed, or if you are not comfortable with electrical work, call an appliance technician.
When should I call a technician for a dryer that will not start?
Call a technician if the timer or control board has failed, if you have checked power, door, and thermal fuse and the dryer still does not start, or if you are not comfortable working with electrical components. If you smell gas, evacuate and call 911 or your gas utility from outside.

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