Dryer Won't Shut Off

Quick answer

First, unplug the dryer to ensure safety. Check the door switch and control panel for any issues. If those are fine, inspect the timer or control board. Replace any faulty components to resolve the problem.

Confirm the symptom

• Dryer continues to run after the cycle is finished.
• Dryer won't stop even when the start button is pressed again.
• Dryer makes noise or runs intermittently without stopping.

Tools and prep

• Screwdrivers (Phillips and flathead)
• Multimeter
• Replacement parts (if needed)
• Work gloves
• Safety glasses
• Unplug the dryer before starting any work.
• Ensure the area around the dryer is clear and well-lit.

Step-by-step troubleshooting

1. Check the Door Switch
   Do: Locate the door switch, usually near the door frame.
   Observe: Use a multimeter to test for continuity when the door is closed.
   Means: If there's no continuity, the switch is faulty.
   Next: Replace the door switch if necessary.
2. Inspect the Control Panel
   Do: Check for any visible damage or loose wires on the control panel.
   Observe: Look for burnt or melted components.
   Means: If damaged, the control panel may need replacement.
   Next: Proceed to test the timer or control board.
3. Test the Timer
   Do: Locate the timer, usually behind the control panel.
   Observe: Use a multimeter to test for continuity.
   Means: If the timer is faulty, it won't send the correct signals to stop the dryer.
   Next: Replace the timer if necessary.
4. Examine the Control Board
   Do: Locate the control board, often behind the main control panel.
   Observe: Check for any burnt or damaged components.
   Means: If damaged, the control board may need replacement.
   Next: Proceed to test the thermal fuse.
5. Test the Thermal Fuse
   Do: Locate the thermal fuse, usually on the blower housing or at the dryer's heat source.
   Observe: Use a multimeter to test for continuity.
   Means: If the thermal fuse is blown, it can cause the dryer to run continuously.
   Next: Replace the thermal fuse if necessary.
6. Check the Moisture Sensor
   Do: Locate the moisture sensor, usually in the dryer drum.
   Observe: Clean the sensor with a soft cloth and isopropyl alcohol.
   Means: A dirty or faulty sensor can prevent the dryer from stopping.
   Next: Replace the moisture sensor if cleaning doesn't help.
7. Inspect the Drive Motor
   Do: Locate the drive motor, usually at the bottom of the dryer.
   Observe: Check for any unusual noises or burning smells.
   Means: A faulty motor can cause the dryer to run continuously.
   Next: Replace the drive motor if necessary.
8. Test the Main Control Board
   Do: Locate the main control board, often behind the main control panel.
   Observe: Check for any burnt or damaged components.
   Means: If damaged, the main control board may need replacement.
   Next: If all else fails, consider calling a professional.

Common causes

Parts matching

If your dryer won't shut off, you may need to replace one of the following parts.

• Door Switch: Ensures the dryer stops when the door is closed.
• Control Panel: Manages the dryer's functions and settings.
• Timer: Controls the duration of the drying cycle.
• Control Board: Regulates the dryer's electrical components.
• Thermal Fuse: Protects against overheating.
• Moisture Sensor: Detects moisture levels in the clothes.
• Drive Motor: Powers the dryer's drum and blower.

Always ensure you have the correct part number for your specific dryer model before purchasing replacements.

When to call a professional

• If you're not comfortable working with electrical components.
• If the dryer is making unusual noises or smells.
• If the dryer shows signs of electrical damage or burning.
• If you've tried all troubleshooting steps and the issue persists.
• If you're unsure about any part of the repair process.

FAQ

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