A dryer that shuts off after a few minutes is usually ending a sensor cycle early, overheating because airflow is restricted, or losing contact through the door switch. Each one leaves different clues, and sorting them out tells you whether the dryer needs cleaning, adjusting or a repair.
Safety first: Unplug the dryer before cleaning inside it, never bypass a thermal fuse or other safety part, and leave gas dryer components to a professional.
Follow the diagnostic path
Step 1: Does it stop early on automatic cycles but run the full time on timed dry?
If yes: The moisture sensor is reading the load as dry too soon. Clean the metal sensor bars inside the drum, usually near the lint screen, since fabric softener and dryer sheet residue coat them. Very small loads can also end a sensor cycle early.
If no: Go to Step 2.
Step 2: Are the clothes hot but still damp, or is the dryer top and laundry room unusually hot?
If yes: Airflow is restricted. Clean the lint screen, straighten any crushed vent hose behind the dryer, and check that the outside hood flap opens when it runs. When a dryer overheats, its safety thermostat cuts the heat first, and on many models a thermal fuse then opens and stops the dryer altogether.
If no: Go to Step 3.
Step 3: After it sits for a while, does it start and run again?
If yes: The motor's thermal protector is likely tripping. Lint packed around the motor or worn bearings can make it run hot. A technician should check it.
If no: If it now won't start at all, a thermal fuse may have opened. Those usually open because of overheating, so the airflow problem needs fixing along with the part.
Step 4: Does it stop when the door is bumped or the load is heavy?
If yes: A worn door latch or switch is losing contact. The switch is a replaceable part; a technician can confirm it.
If no: Go to Step 5.
Step 5: Does the plug, cord or outlet feel warm, or show any discoloring?
If yes: Stop using the dryer. A loose connection at the cord or outlet can cause intermittent shutoffs and is a fire risk. Call a technician or electrician.
If no: A control or timer fault is more likely; book a technician.
What your answer points to
| What you found | Most likely cause | DIY or technician |
|---|---|---|
| Stops only on sensor cycles | Coated moisture sensor | DIY cleaning |
| Hot but damp clothes | Restricted vent | DIY lint and vent check |
| Restarts after cooling | Motor overheating | Technician |
| Stops when door is bumped | Door switch or latch | Technician |
| Warm or discolored cord or outlet | Loose electrical connection | Technician or electrician |
Stop and call a technician if
- •You smell burning or see scorch marks.
- •A thermal fuse has opened more than once.
- •The motor sounds rough or loud.
Keep it from coming back
- •Clean the lint screen every load.
- •Wipe the sensor bars every few months.
- •Have the full vent run cleaned on a regular schedule.
Owen's shop tip: I ask what cycle the customer used before I open anything. If it only quits on auto dry, the fix is often a cloth and a minute of cleaning.
If the drum stops turning as well, our guide to a dryer drum not turning picks up from there. For a dryer that keeps cutting out with a clean vent, book through our dryer repair page or call (617) 812-1425.