pool pump
Pool Knowledge

Why Is My Above Ground Pool Pump Not Working? 

Above ground pools use a pump for water circulation just like inground pumps. It’s expected that your pump runs smoothly. However, there are times that it shall develop glitches and fail to work. A lot of issues might lead to a failed above ground pool pump. Every time a pump blocks, the question you remain asking is, why is my above ground pool pump not working? 

Why Is My Above Ground Pool Pump Not Working?

Let’s troubleshoot some of the common problems, great chances are that one of them is affecting your pump.

Check your pump’s motor

A motor is among the main parts of your pump. It can last up to five years if well taken care of. As we shall realize later, most issues come from the motor interacting with water or any other extreme conditions. The best preventive measure you can take is to cover your motor. The following are some of the issues that you shall associate with the motor of your above ground pump.

Pump producing a screeching sound

In case your above ground pool pump is producing a grinding sound like there are stones inside, check the motor bearings. Worn out or rusted bearings cause that screeching sound and might make your pump stop or work inefficiently. 

Check your shaft seal, it might be leaking thereby allowing water into the bearings making them rust. To correct this, replace the ball bearing and repair the seal shaft if it’s leaking.

My pump is producing a loud hum

This is a sign of a locked up shaft. When the bearings freeze, they lock up the shaft making your pump motor produce a humming sound. However, in case the shaft isn’t locked, the capacitor might have failed to make your pump hum.

My pump’s breaker is flipping

In case you experience a flipping pump breaker, then most chances are that a deep part of your motor has failed. Depending on the component, this might call for a total replacement or a rebuild of your motor.

My pump remains silent

In this case, the shaft of the motor in your pump has frozen. This is a sign of a total failure in the motor. You’ll have to go buy a new one. 

Your seals and gaskets also cause problems 

The gaskets, o-ring, and shaft seals that are used to make your pumps joints watertight are susceptible to wear and tear. The problem is that, in case you overlook a minor problem with gaskets or seals, then you risk having a major problem with your pump. Water shall leak into your pump’s motor area and affect your motor. We don’t have to discuss how much replacing your motor is.

Why is my above ground pool pump not working? The shaft seal

The shaft seal is a small but crucial part of your pump. This is the seal that protects the pump motor from interacting with water that is circulating in the pump. Water is a long time enemy to motors. Therefore, if your shaft wears out, there shall be space for water leaks into your motor. When your motor interacts with water, the bearings shall rust, copper windings shall be corroded by the chlorinated water and other effects. 

A sign that your seal is broken shall be your motor vents dripping water, a rusty case, and screeching bearings. The earlier you detect this, the better before water eats up your motor.

Your pump’s seal plate

The part where the motor joins to the pump housing is called a seal plate. It can be observed with the plain eye. To detect a problem, you shall observe cracks, wearing and tearing at the joining areas. In case of this, then your motor might be tightened too much to your pump housing. Such tight bolts cause cracks that later lead to leaking and failure of your motor. If the damage has not gone too far, loosen the bolts to prevent further damage and bigger losses.

A problem with the housing gasket  

When you experience a wet pump pad or a leaking housing seam and seal plate, then there is a problem with your housing gasket. In between the seal plate and the housing of your motor, there is a gasket that performs a sealing function. If there is a spill out of the water from the seam located between your pump housing and seal plate, then your housing gasket is the fault.

The impeller       

This is the part that produces the sucking effect for your pump. Located at the end of your motor shaft, it is fitted with veins that work like a propeller. They suck and pump out the water enabling circulation. In case of a broken impeller, water shall just be rattling in within your pump without actually pumping. The most common signs for this is when your pump loses its prime completely or when the water pressure runs low.  

The strainer lid and basket  

The strainer basket removes debris and particles that can harm the internal components of your pump such as the impeller. A faulty strainer basket shall allow such particles into delicate pump components such as the filter cartridges. 

In case of a faulty strainer basket, you shall have a rattling sound coming from the strainer basket area, a damaged impeller, or cartridges. 

In case your strainer lead wears out and develops a crack, then you got an issue. Air shall get into your pump during pumping to affect your water pressure and priming.   

Why Is My Above Ground Pool Pump Not Working? Conclusion

As we realize, a pool pump has got a lot of vulnerable parts. The parts of a pump are interconnected such that, a problem in one leads to subsequent issues in other components. Therefore, there is no part that is to be assumed as a minor. For instance, a faulty filter basket shall make your cartilages and impeller spoil. 

Worn out seals shall lead to the destruction of your pump’s motor. It is good that you take tome to observe the signs from your faulty pump to identify the possible problematic parts. Some parts can easily be replaced locally, however, most pump issues need a professional technician to fix.