5 Reasons Why Air Compressor Hissing Sound! [Issue Fixed 2022]

An air compressor hissing sound is not only annoying but can be an indication of a serious problem. If you hear your air compressor making this noise, it’s important to take action to fix the issue as soon as possible. Here are 5 reasons why your air compressor might be hissing and how to fix it.

5 Ways to Fix Air Compressor Hissing Sound!

1. A Leak in the System

One of the most common reasons for an air compressor hissing sound is a leak in the system. This could be a leak in the air tank, the hoses, or any other part of the system. To fix this, you’ll need to identify where the leak is coming from and then make the necessary repairs.

2. The Air Tank is Overheating

Another common reason for an air compressor hissing sound is overheating. This can happen if the air tank is exposed to direct sunlight or if it’s located in a hot area. If this is the case, you’ll need to move the air compressor to a cooler location. You may also need to replace the air tank if it’s damaged from overheating.

3. The Pressure Relief Valve is Faulty

The pressure relief valve is a safety feature that helps to prevent the air tank from exploding. If this valve is faulty, it can cause an air compressor hissing sound. To fix this, you’ll need to replace the pressure relief valve with a new one.

4. There’s Moisture in the System

If there’s moisture in the system, it can cause an air compressor hissing sound when it evaporates. To remove moisture from the system, you can use a desiccant dryer or drain the tank on a regular basis.

5. The Pump isn’t Lubricated Properly

If the pump isn’t lubricated properly, it can cause an air compressor hissing sound. To fix this, you’ll need to add more oil to the pump or replace the oil that’s already there with a new one.

FAQs on Air Compressor Hissing Sound

What does it mean when my air compressor is hissing?

Hissing can be indicative of a few different things. It could be that your compressor is low on oil, or that there is a leak in one of the hoses. If the hissing continues after you’ve refilled the oil, it’s likely that there is a bigger problem and you should take your compressor to a professional for diagnosis.

Is it normal for my air compressor to make a hissing noise when I first turn it on?

It is not abnormal for your air compressor to make some noise when you first turn it on. This is usually just air escaping from the tank and shouldn’t be cause for concern. However, if the noise doesn’t stop after a few minutes, or if it gets louder over time, you should shut off your compressor and call a professional.

Why is my air compressor making a hissing noise and not pumping air?

If your air compressor is making a hissing noise but not pumping air, there are a few possible explanations. It could be that the pressure switch isn’t working properly, or that there is an issue with the unloader valve. Another possibility is that the intake filter is clogged, which is preventing air from entering the pump. If you’re unsure what the problem is, it’s best to call a professional for help.

Why does my air compressor keep hissing after I turn it off?

There are a couple of reasons why your air compressor might keep hissing after you turn it off. It could be that there is still pressure in the tank, or that there is a leak in one of the hoses. If you’re not sure what the problem is, it’s best to call a professional for help.

How do I fix a leaky hose on my air compressor?

If you have a leaky hose on your air compressor, the first thing you’ll want to do is shut off the power and release any pressure that’s in the tank. Once that’s done, you can remove the hose and inspect it for any holes or cracks. If you find any damage, you’ll need to replace the hose. If the hose looks in good condition, try tightening the fittings at each end of the hose. If that doesn’t work, you may need to replace one or both of the fittings.

Final Thoughts:

If you hear your air compressor making a hissing sound, don’t ignore it! This noise can be an indication of a serious problem that needs to be fixed as soon as possible. By troubleshooting and taking action to fix the issue, you can keep your air compressor running smoothly for years to come.

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