What To Know
- If it is faulty, it may not activate the compressor or may cause it to run continuously.
- By following the steps outlined in this guide, you can identify the potential causes and take the necessary actions to resolve the issue.
- A faulty pressure switch or a leak in the air tank may cause the compressor to run continuously.
Air compressors are indispensable tools in various industries and home workshops. However, when your trusty DeWalt air compressor goes silent, it can be a frustrating and time-consuming experience. Understanding the potential causes of this issue is crucial for troubleshooting and getting your compressor back up and running efficiently. This comprehensive guide will delve into the common reasons why your DeWalt air compressor may not be working and provide practical solutions to resolve them.
Electrical Issues
1. Power Supply
- Check the power cord: Ensure that the power cord is securely connected to both the compressor and the power outlet. Inspect the cord for any damage or fraying.
- Test the outlet: Use a multimeter to verify that the power outlet is providing electricity. If not, it may be faulty and require repair.
2. Circuit Breaker
- Locate the circuit breaker: Find the circuit breaker that controls the power to the compressor.
- Reset the breaker: If the breaker has tripped, reset it by turning it off and then back on. If it trips again, there may be an electrical fault that needs attention.
3. Motor
- Check for loose connections: Inspect the motor’s electrical connections to ensure they are tight and secure.
- Test the motor: Use a multimeter to test the motor’s continuity. If the motor is not receiving power or is faulty, it may require replacement.
Mechanical Issues
4. Air Filter
- Inspect the air filter: A clogged air filter can restrict airflow and prevent the compressor from building pressure. Clean or replace the air filter regularly.
5. Valves
- Check the intake valve: Verify that the intake valve is opening and closing properly, allowing air to enter the compressor.
- Test the discharge valve: Ensure that the discharge valve is closing tightly, preventing air from escaping.
6. Pistons
- Inspect the pistons: Worn or damaged pistons can reduce compression and affect the compressor’s performance.
- Check the piston rings: Faulty piston rings can allow air to leak, reducing the compressor’s efficiency.
7. Lubrication
- Check the oil level: Insufficient oil can cause overheating and damage to the compressor. Ensure the oil level is within the recommended range.
- Inspect the oil filter: A clogged oil filter can prevent oil from circulating properly, leading to lubrication issues.
Other Potential Causes
8. Pressure Switch
- Test the pressure switch: The pressure switch controls the compressor’s operation. If it is faulty, it may not activate the compressor or may cause it to run continuously.
9. Pressure Relief Valve
- Inspect the pressure relief valve: A faulty pressure relief valve may not release excess pressure, potentially causing the compressor to overheat or fail.
10. Tank Leaks
- Check for leaks: Inspect the air tank for any cracks or holes that may be causing air to leak. Repair or replace the tank as needed.
Troubleshooting Tips
- Follow the manufacturer’s instructions: Refer to the DeWalt air compressor user manual for specific troubleshooting guidance.
- Use a multimeter: A multimeter can help you diagnose electrical issues and test components.
- Contact DeWalt support: If you are unable to resolve the issue on your own, contact DeWalt customer support for assistance.
Troubleshooting and Repair Guide
Refer to the following guide for detailed troubleshooting and repair instructions for specific DeWalt air compressor models:
- [DeWalt D55150 Air Compressor Troubleshooting Guide](https://www.dewalt.com/support/d55150)
- [DeWalt D55165 Air Compressor Troubleshooting Guide](https://www.dewalt.com/support/d55165)
- [DeWalt D55175 Air Compressor Troubleshooting Guide](https://www.dewalt.com/support/d55175)
Wrapping Up
Troubleshooting a malfunctioning DeWalt air compressor can be a challenging task. By following the steps outlined in this guide, you can identify the potential causes and take the necessary actions to resolve the issue. Remember, safety should always be a top priority when working with air compressors. If you are not comfortable performing repairs yourself, it is advisable to seek professional assistance.
Top Questions Asked
Q: Why is my DeWalt air compressor not building pressure?
A: This could be due to a clogged air filter, faulty valves, worn pistons, or an insufficient oil level.
Q: Why is my DeWalt air compressor running continuously?
A: A faulty pressure switch or a leak in the air tank may cause the compressor to run continuously.
Q: Why is my DeWalt air compressor overheating?
A: Insufficient lubrication, a clogged air filter, or a faulty pressure relief valve can lead to overheating.
Q: Why is my DeWalt air compressor leaking air?
A: Check for leaks in the air tank, hose, or connections. Replace any damaged components.
Q: How often should I service my DeWalt air compressor?
A: Refer to the manufacturer’s recommendations for regular maintenance intervals. Typically, air filters should be cleaned or replaced every 500 hours of operation, and the oil should be changed every 2,000 hours.
