How-To Blogs & Videos

There’s no sound more frustrating in a workshop than the failed attempt of an air compressor to start. Instead of the satisfying roar of a motor kicking on, you get a hesitant hum, a lonely click, or, worst of all, silence. When this happens, your project stops, but the solution is often simpler (and cheaper) than buying a new unit. At Master Tool Repair, we know these symptoms are clues. Here is your definitive guide to diagnosing the three most common air compressor motor issues and gett …

The Brain of the Beast: Understanding Your Pressure Switch The pressure switch is the unsung hero of your air compressor system. Most users only interact with it when they need to slightly tweak the cut-in or cut-out pressure—the "basics of adjustment." But a pressure switch is far more than a simple toggle. It's the central command unit, dictating when your motor runs, ensuring safe operation, and managing the critical start-up cycle. When it fails, your entire operation grinds to a halt. …

Air compressors are essential tools, but when they start acting erratically – either short cycling (turning on and off frequently) or running continuously – it can be incredibly frustrating and costly. This improper pressure regulation not only hinders your work but can also indicate underlying issues that need immediate attention. Why Your Compressor Might Be Short Cycling Short cycling occurs when your air compressor turns on and off too frequently. This can lead to increased wear …

Welcome to this week's featured part at Master Tool Repair: Air Compressor Pressure Switches. These crucial components ensure your air compressor operates efficiently and safely by regulating the pressure within the tank.What is a Pressure Switch?A pressure switch is an essential device that monitors the air pressure inside the compressor tank. When the pressure reaches a preset level, the switch automatically shuts off the motor to prevent over-pressurization. Conversely, when the pressure drop …

6 Signs It's Time to Replace Your Air Compressor's Pressure Switch Whether you're a seasoned DIY enthusiast or a professional relying on air tools, a malfunctioning air compressor pressure switch can throw a wrench into your plans. Understanding the telltale signs of a faulty pressure switch is crucial for maintaining a well-functioning air compressor. Let's dive into the indicators that may signal it's time to inspect or replace your pressure switch.1. Inconsistent Pressure Levels: Symptom: …