A dryer that does nothing when you press start is usually stopped by a safety device rather than a broken motor. The door switch, the thermal fuse and the start switch sit in series ahead of everything else, and any one of them opening kills the machine completely. Check them in the order below and you will find the fault without dismantling anything you did not need to.
Read this first
- Unplug the dryer and shut the gas valve on gas models before opening any panel.
- Never bypass a thermal fuse — it is the last line of defence against a vent fire, and a blown one means the dryer overheated for a reason you have not fixed yet.
- Electric dryers run on 240 volts; treat the terminal block and cord as lethal even after the breaker is off until you have verified it with a meter.
Step by step
Check power properly — both legs of it
An electric dryer needs two 120-volt legs. If only one leg is live, the drum will not turn and the machine will look dead, or on some models the panel lights but nothing moves. Push the double-pole breaker fully off, then firmly back on. If you are comfortable and qualified, verify 240 volts across the outlet's two hot terminals and 120 volts from each hot to neutral. Gas dryers run on ordinary 120 volts — check that outlet and any GFCI feeding it.
Test the door switch
The door switch tells the dryer the door is closed, and it is the most commonly failed no-start part. Open the door and press the plunger by hand — most models give an audible click and the drum light goes out. Then unplug the machine and check the switch for continuity with a multimeter, actuated and released. A switch that clicks but does not make continuity is still bad. On some designs a bent or broken door strike is the real culprit and the switch is fine.
Test the thermal fuse
On many Whirlpool, Kenmore, Maytag and Amana dryers, the thermal fuse sits in the motor circuit — so when it blows, the dryer will not run at all, not just refuse to heat. It is a small white or black component on the exhaust duct or blower housing. Unplug the dryer and test it for continuity: no continuity means blown. Replace it, but understand that a thermal fuse blows because the dryer overheated, and that means you must clean the vent run at the same time or the new fuse will go too.
Test the start switch
Start switches are momentary push buttons that wear out from tens of thousands of presses. Unplug the machine, get behind the console, and test the switch for continuity while pressing it. Some models use a rotary start that has to be pushed in and held for a second or two — try holding it longer before concluding it is bad. A dryer that starts if you jiggle or hold the knob is telling you the switch contacts are worn.
Check for a broken belt
On many designs, a snapped drive belt releases the idler pulley, which opens a belt switch and stops the motor from running at all. The test takes five seconds: open the door and spin the drum by hand. A drum that spins freely with almost no resistance has no belt on it. A drum that resists and coasts to a stop still has its belt. Belts are $15–$30 and are one of the most satisfying dryer repairs to do yourself.
Listen for a motor hum
If pressing start produces a hum but no rotation, the motor is being energised but cannot turn. Either the drum or blower is physically jammed — check for an item wedged between the drum and the bulkhead, or debris in the blower — or the motor's start winding or centrifugal switch has failed. Let the motor cool for an hour first; a hot motor with a tripped thermal overload gives exactly this symptom and recovers on its own.
Look for a stored error code and reset
Electronically controlled dryers store fault codes. Check the manual or the tech sheet behind the console for the diagnostic sequence. While you are there, unplug the machine for five minutes and restore power — a genuine share of no-start conditions on board-controlled dryers are lockups after a power event and clear with a full reset.
What this repair costs
Doing it yourself
$5–$60
Hiring a technician
$130–$400
Prices are general estimates for typical US jobs, not quotes. What you actually pay depends on your appliance's brand and age, the part required, your region, and each shop's labour rate. The DIY figure assumes you supply the labour and buy the part yourself.
Parts you may end up buying
| Part | Install | Typical price | Typical lifespan |
|---|---|---|---|
| Thermal Fuse | easy | $5–$20 | One-time (blows when overheated) |
| Heating Element | moderate | $20–$60 | 8–15 years |
| Cycling and High-Limit Thermostats | easy | $10–$40 | 8–15 years |
| Drive Belt | moderate | $12–$45 | 8–14 years |
| Drum Rollers and Idler Pulley | moderate | $20–$70 | 7–12 years |
| Gas Igniter | moderate | $20–$65 | 6–12 years |
| Gas Valve Coil Kit | moderate | $20–$65 | 8–15 years |
| Door Switch | easy | $10–$40 | 8–15 years |
| Blower Wheel | moderate | $20–$70 | 10–15 years |
| Moisture Sensor Bars | easy | $15–$50 | 10+ years |
Still not fixed
When to call a pro
If the door switch, thermal fuse and start switch all test good, the belt is intact, and the motor neither hums nor turns, you are into the motor, the timer, or the main control board. Motors run $80–$180 and boards $120–$300, and neither is worth buying on a guess. On gas dryers, any work involving the burner assembly, gas valve or supply line is licensed work — and if you smell gas at any point, stop, ventilate, leave the building, and call your gas utility from outside.
More dryer guides
- Dryer Not Heating — Electric and Gas, Diagnosed in Order45–120 minutes
- Dryer Takes Too Long — Restore Full Drying Speed45–120 minutes
- Dryer Squealing or Thumping — Find the Worn Part60–150 minutes
- Dryer Drum Not Turning — Belt, Pulley and Motor Checks60–150 minutes
- Dryer Shuts Off Mid-Cycle — Overheating and Sensor Faults45–120 minutes
- Dryer Smells Like Burning — Stop and Find It Before the Next Load60–120 minutes
- Dryer Trips the Breaker — Find the Fault, Not a Bigger Breaker60–120 minutes
- Dryer Getting Too Hot — Scorched, Shrunk and Damaged Loads60–120 minutes
- Dryer Tearing or Snagging Clothes — Find the Sharp Edge45–90 minutes