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There’s nothing more frustrating than setting up for a job—only to find that your DeVilbiss air compressor refuses to start. Whether you’re a seasoned professional or a DIY enthusiast, a non-working compressor can bring everything to a halt.
But don’t worry! Before assuming the worst, there are several common issues that could be causing the problem—many of which you can fix yourself. In this guide, we’ll walk you through the troubleshooting steps to get your compressor back up and running. From checking power connections to inspecting pressure switches, we’ll cover all the key areas to diagnose and resolve the issue.
Let’s dive in and get that compressor working again!
Table of Contents
- Reasons Why De Vil Biss Air Compressor Won’t Start
- Common De Vil Biss Issues
- Reader Questions & Responses
Reasons Why De Vil Biss Air Compressor Won’t Start
When a DeVilbiss air compressor won’t start, the issue could be due to a variety of reasons. Here are some common troubleshooting areas to consider:
| Reason | Suggested Check/Action |
|---|---|
| Power Supply Issues | Verify the compressor is plugged in, the outlet works, check circuit breakers, and inspect power cord and plug. |
| Pressure Switch Malfunction | Check if the pressure is above cut-in pressure and manually test the switch. |
| Motor Overload Protection | Wait for the motor to cool down if the thermal overload has tripped. |
| Faulty Capacitors | Test start/run capacitors with a multimeter (requires electrical knowledge). |
| Air Leaks | Inspect connections, hoses, and fittings for leaks and repair as necessary. |
| Safety Valve Issues | Ensure the safety valve is closed and functioning correctly. |
| Dirty or Clogged Filters | Clean or replace air intake filters. |
| Mechanical Problems | Check for seized pistons or damaged pump (may require professional repair). |
| Electrical Wiring Issues | Inspect for faulty wiring, loose connections, or damaged switches. |
| Oil Level (oil-lubricated models) | Check and refill the oil to the recommended level. |
Always ensure safety by disconnecting power before attempting any repairs and consult the user manual or a professional if unsure.
Common De Vil Biss Issues
Beyond starting issues, DeVilbiss air compressors can encounter various other operational problems.
Beyond starting issues, DeVilbiss air compressors, like any air compressor brand, can encounter various other operational problems. Here’s a table outlining some common issues and their respective solutions:
| Issue | Possible Cause | Solution |
|---|---|---|
| Air Leakage | Loose connections or worn seals | Tighten connections and replace seals or gaskets as needed. |
| Pressure Fluctuations | Faulty pressure switch or regulator | Test and replace the pressure switch or regulator if necessary. |
| Excessive Noise | Loose parts or vibration | Tighten all bolts and screws, and ensure the compressor is on a stable surface. Use vibration pads. |
| Overheating | Blocked ventilation or high duty cycle | Clean air filters and ensure proper ventilation. Avoid running the compressor beyond its duty cycle. |
| Moisture in Air Lines | High humidity or lack of air dryer | Install a moisture separator or air dryer in the air line. Drain the tank regularly. |
| Low Air Output | Clogged filters or leaks in the system | Clean or replace air filters. Check for leaks in hoses, fittings, and connections and repair as needed. |
| Oil in Air Output | Worn piston rings or using wrong oil type | Replace piston rings. Ensure you’re using the correct oil type for your compressor model. |
| Unusual Vibration | Imbalanced flywheel or loose parts | Check and balance the flywheel. Tighten any loose parts. |
| Tank Rusting | Moisture accumulation inside the tank | Drain the tank regularly to remove moisture. Consider applying a protective coating if necessary. |
| Breaker Tripping | Overloaded circuit or short in compressor | Ensure the compressor is on a dedicated circuit. Inspect for shorts and repair as needed. |
It’s crucial to regularly maintain your DeVilbiss air compressor to avoid these issues. Regular checks should include inspecting hoses, connections, and seals for wear and tear; cleaning or replacing air filters; draining moisture from the tank; checking oil levels (for oil-lubricated models); and ensuring the machine is clean and well-ventilated during operation.
Reader Questions & Responses
My DeVilbiss air compressor starts but then quickly shuts off. What could be causing this?
This issue could be related to a few different causes. Firstly, check the pressure switch to ensure it’s operating correctly. If the compressor shuts off before reaching the cut-out pressure, the switch may be faulty. Another possibility is an overheating motor, which can cause the compressor to shut off prematurely; ensure the motor’s cooling system is clean and unobstructed. Additionally, verify that the compressor is not running on an extension cord, which can cause voltage drop and overheating.
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