Quick answer
If your dryer starts but stops immediately, first ensure the door is fully closed and the power cord is secure. Check the door switch for continuity and inspect the thermal fuse for damage. Replace faulty parts as needed.
Confirm the symptom
- Dryer starts when you press start
- Stops within seconds or minutes
- No error codes displayed
- Door seems to close properly
- Power cord is plugged in
Tools and prep
- Screwdrivers (flathead and Phillips)
- Multimeter for testing continuity
- Owner's manual for part diagrams
- Work light with clamp
- Rubber mat for insulation
- Unplug dryer from power source
Step-by-step troubleshooting
- Check Power ConnectionDo: Inspect the power cord and outlet for damage or loose connections.Observe: Power cord is intact and outlet is functional.Means: Electrical supply is stable.Next: Check door switch
- Check Door SwitchDo: Test the door switch with a multimeter for continuity when the door is closed.Observe: Multimeter shows no continuity.Means: Door switch is faulty.Next: Replace door switch
- Inspect Thermal FuseDo: Locate and test the thermal fuse with a multimeter for continuity.Observe: Multimeter shows no continuity.Means: Thermal fuse is blown.Next: Replace thermal fuse
- Check Drive MotorDo: Test the drive motor for continuity using a multimeter.Observe: No continuity in motor windings.Means: Drive motor is faulty.Next: Replace drive motor
- Examine Timer or Control BoardDo: Test the timer or electronic control board for proper function.Observe: Timer or control board shows no response.Means: Timer or control board is defective.Next: Replace timer or control board
- Check for OverheatingDo: Ensure the dryer's vent system is clear and the lint filter is clean.Observe: Vent is clogged or lint filter is dirty.Means: Overheating caused shutdown.Next: Clean vent and lint filter
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Faulty Door Switch The switch fails to stay engaged, cutting power after start. | Common | Easy | Door Switch |
| Blown Thermal Fuse Overheating or previous malfunction triggers the fuse to open. | Common | Easy | Thermal Fuse |
| Defective Drive Motor Internal motor failure stops operation after initial start. | Sometimes | Medium | Drive Motor |
| Malfunctioning Timer or Control Board Electronics fail to maintain the running cycle. | Sometimes | Hard | Timer/Control Board |
| Clogged Vent or Lint Filter Poor airflow causes overheating and automatic shutdown. | Sometimes | Easy | Vent Cleaning Kit |
| Loose or Damaged Power Cord Intermittent power supply stops the dryer after starting. | Rare | Easy | Power Cord |
Parts matching
Common parts needed for this repair:
- Door Switch - $10–$30
- Thermal Fuse - $5–$15
- Drive Motor - $50–$150
- Timer/Control Board - $30–$100
- Vent Cleaning Kit - $15–$40
Purchase OEM parts for compatibility and reliability.
When to call a professional
- Dryer emits burning smell or smoke
- Electrical sparks or shocks occur
- You're unsure about electrical testing
- Vent system is inaccessible or complex
- Multiple parts fail simultaneously
FAQ
How do I test the door switch?
Use a multimeter to check for continuity when the door is closed. No continuity means the switch needs replacement.
Can a clogged vent cause the dryer to stop?
Yes, poor airflow leads to overheating and automatic shutdown. Clean the vent and lint filter regularly.
Is it safe to replace the thermal fuse myself?
Yes, if you follow safety steps and unplug the dryer. The thermal fuse is an easy DIY replacement.
Why would the control board fail?
Moisture, age, or electrical surges can damage the control board, causing it to malfunction.
How often should I clean the lint filter?
Clean the lint filter after every load to prevent overheating and maintain efficiency.