Aquarium Air Pump Not Working-An Ultimate Guide

Pumping oxygen into your aquarium is critical to keeping fish healthy and alive. If the air pump stops working, it’s important to find out why so you can make sure that the air supply keeps flowing.

If there’s no power, you need to find out why before taking further action or risk killing your fish. Once you have the power source up and running again, however, you’ll want to check the water pump itself to make sure it isn’t clogged or broken.

Aquarium Air Pump Not Working

I also faced the problem when my Aquarium air pump stopped working suddenly. I was annoyed because it did not show the problem before. However, after consulting an expert, I got the problem solved. Here’s what I did.

Changing the air pump filter

The first thing you should do if your aquarium air pump stops working is to check the filter. Over time, the filter can become clogged with dirt and debris, which can impede the flow of air. To clean the filter, simply remove it from the pump and rinse it off with water.

You may need to replace the filter if it’s severely damaged. Once you’ve replaced or cleaned the filter, reattach it to the pump and turn it on. The pump should now be working properly.

Changing the pump impeller

The first thing you should do if your aquarium air pump isn’t working is check the impeller. The impeller is the part of the pump that moves the water, so if it’s not working, the pump won’t be able to move any water.

To change the impeller, you’ll need to disassemble the pump and then remove the old impeller. Once you’ve done that, you can put a new impeller in its place and reassemble the pump.

Change the air pump heat sink

The air pump heat sink is a small metal device that helps to cool the air pump. If the air pump is not working, it may be because the heat sink is not working properly. To fix this, you will need to change the air pump heat sink.

Here’s how to Disconnect power from the aquarium. Carefully remove any obstructions in the way of access to the air pump and heat sink on top of the air pump compartment.

Remove screws holding down the heat sink and replace them with the new ones by screwing them down securely with screws. Replace cover for the motor compartment and turn the power back on at aquarium filter so you can check if your work was successful or not!

Replacing a bad solenoid

If your aquarium air pump isn’t working, the first thing you should check is the solenoid. The solenoid is a vital part of the air pump, and if it’s not working, the pump won’t work either. Luckily, replacing a bad solenoid is a relatively easy fix. Just follow these steps:

1. Turn off the power to the air pump.
2. Unscrew the back panel of the air pump to access the solenoid.
3. Unplug the wires from the old solenoid and remove it from the air pump.
4. Insert the new solenoid into the air pump and reattach the wires.
5. Screw the back panel back onto the air pump.


What questions do people have regarding the same problem? Some of the most frequently asked questions are mentioned below.

Why my filter is not showing bubbles?

When there are no bubbles, the filter might not be working. As a result, it may need to be replaced or repaired. The most common cause is that an air pump is disconnected or blocked. Furthermore, if you see cloudy water in the tank, the water may be contaminated.

How long does a Fish survive without an air pump?

There is a short answer: Fish can survive without an air pump for about a couple days when the water is still. It may not be necessary to use an air stone at all if a filter and surface water movement is sufficient.

Also, go through: Electric Air Pump Stopped Working-Best Guides


If your aquarium air pump isn’t working, don’t despair! With a little troubleshooting, you should be able to identify and fix the problem. First, check to make sure that the pump is getting power.

If it is, then the next step is to clean or replace the air filter. If that doesn’t solve the problem, then you may need to replace the impeller. Finally, if none of those steps work, then you may need to replace the entire air pump.

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