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Welcome to the About Air Compressors Online Support Community

Here are some of the latest support discussions taking place right now - join in, help where you can, request help when you need it - and be kind!

Air Compressor Pressure Switch Troubleshooting & Buying Guide

A couple of compressor pressure switches

What is an air compressor pressure switch and what does a pressure switch for an air compressor do? Importantly, how…

Parts of An Air Compressor Diagram Guide – Air Compressor Parts List

Air compressors consist of many components to ensure that your system provides high-quality compressed air, and so, it can often…

Air Compressor Fittings Sizes Guide – Compressed Air Fittings Guide, Types & Sizes

Air compressor fittings are essential to keeping your unit running efficiently and delivering the air power you require for your…

Types of Air Pressure Regulators – How Does an Air Compressor Regulator Work?

One of the most important components of an air compressor is the air pressure regulator. Air pressure regulators, otherwise known…

Plumbing an Air Compressor Setup in Garage – Ultimate Workshop Setup

Garage Air Lines Secondary Receiver And Combining Compressors

This article will serve as your epic guide in creating your ideal air compressor setup at home that will make…

Connecting Two Air Compressor Tanks Together – How to Add an Additional Tank to the System

DeWalt D55151 Air Compressor with 2 tanks

I get a lot of questions about whether or not it’s a good idea to implement an additional tank to…

Connecting Two Air Compressors Together – Dual Air Compressor Setup for More Air & CFM

Connecting Two Air Compressors Setup

Connecting two air compressors together can provide you with a solution to a lack of airflow supplying your higher-demand air…

Identifying an Older Air Compressor – Serial Numbers, Photos & Antique Air Compressor Identification

Help Identifying Compressor

Are you having an issue with identifying an older air compressor? Air compressors have been around in one form or…

Air Compressor Keeps Tripping Circuit Breaker – Why & How to Fix Air Compressor Breaker Tripping

Square D high magnetic circuit breaker

A circuit breaker is an electrical switch designed to protect an electrical circuit from the excess current which will result…

What Is CFM and What Does CFM Mean on An Air Compressor?

Calculating CFM will require a calculator unless you are lucky enough to be a math genius

CFM is a very important consideration for any air compressor. This page will provide you with all the relevant information…

Air Compressor Keeps Tripping Reset Button -Thermal Overload Causes & Solutions

With just a couple of minutes running time, or sometimes after ten or fifteen minutes or so, the air compressor…

Air Compressor Capacitor Guide: How to Size a Capacitor for a Compressor

What Capacitor Does My Compressor Need Capacitor Housing On Electric Motor

When either one or both air compressor motor capacitors fail, you will need to replace them. But what capacitor does…

What Size Extension Cord For An Air Compressor – Best Air Compressor Extension Cords

Extension cords aren't recommended for many Air Compressors

If you can avoid using an extension cord with your air compressor, do so, but if you can’t, how do…

Air Compressor Unloader Valve Explained, Adjustment & Common Problems

Not all unloader valves are the same. This one is off a Condor MD-11 compressor switch.

On a reciprocating, rotary screw, and even fossil fuel air compressors, compressed air can be trapped over the piston when…

Air Compressor Won’t Turn Off – Fixing An Air Compressor That Keeps Running

Are you having trouble with your air compressor not shutting off when it reaches cut-off pressure? You’re not alone, it’s…

Air Compressor Won’t Start? Ways to Fix Air Compressor Won’t Turn On Problems

Makita 5200 air compressor

An air compressor not turning on is a very common issue. Knowing how aggravating it is, this article will provide…

Why An Air Compressor Won’t Build Pressure & How to Fix an Air Compressor Not Building Pressure

Cylinder And Pistons

Why is it a compressor will not build pressure? Does the following describe what’s happening, or rather, what’s not happening,…

How to Increase CFM On Air Compressor – 5 Best Ways

Tanks are measured in gallons. How many cubic feet of compressed air do these tanks hold?

The best way to increase CFM on an air compressor is to make some adjustments to your system such as…

What Is My Compressor Worth? Ask Our Community – Get An Estimate

Clean an old rusty air compressor tank, what's it worth?

What is my compressor worth? This is a question that gets asked a lot on this website. This page will…

Why does my air compressor line get hot? ANSWERED

Why Does My Compressor Line Get Hot Air Line To Tank

My air compressor has a copper line on it and after it had been running for a long period of…

Air Compressor Motor Sparking & Smoking Troubleshooting Help & Support

Husky Dk643500av Compressor Motor

Are you having issues with your air compressor motor sparking and smoking? Here are some examples of why this could…

How To Test A Start Capacitor On Air Compressor Motor – Testing Capacitors

Do you need to test your air compressor capacitors? This page will provide you with a step to step guide…

Air Compressor Tank Check Valve Troubleshooting – Testing & Repair

Where the check valve is on this compressor.

Compressor tank check valves fail from time to time. Here are some troubleshooting tips for buying a replacement compressor tank…

Air Compressor Intake Filter – Replacing, Locating, Cleaning & Purpose Guide

Broken Air Intake Filter

For obvious reasons, it is a very good idea to filter the incoming air into you air compressor pump. The…

Central Pneumatic Air Compressor Oil – Choosing Oil, How Much To Use & Changing Oil

Central Pneumatic 95275 Pancake Compressor

It can be quite a daunting task trying to figure out how to change your Central Pneumatic Air Compressor Oil,…

Air Compressor Pressure Switch Repair & Assembly After Fix

This Is A Compressor Pressure Switch Putting A Pressure Switch Back Together.html

From time to time I get an exceptional post from folks visiting this site. Here’s one about putting a pressure…

How to Wire a 220V Air Compressor Pressure Switch

Pressure switch terminal wiring

Air compressor pressure switches are often liable to premature wear and therefore need to be replaced. When replacing your air…

Centrifugal Air Compressor Maintenance Guide – Help & Support

Just as with other types of air compressors, timely and thorough maintenance of your centrifugal compressor can help increase performance,…