If your swimming pool is making noise there could be several reasons it is doing so. The two most common problems that will cause pool pump noise is when the ball bearings go bad and sometimes when the impeller spins off of the pump shaft from the pump over heating. One other common noise is a loud humming and this happens when the motor bearings have frozen up over the winter, but not a cold type of frozen but rather a mechanical type as in the bearings are rusted or corroded and they will not spin.
When your pool pump motor bearings go bad they can make a few different sounds to indicate to you that they need to be replaced. The first thing you should know is that you cannot lubricate your pool pump bearings. Once the bearings inside of the pool pump motor go bad, you will need to replace them or replace the entire motor.
Motor Bearings Are Making Noise / Need To Be Replaced
All pool pumps have two bearings inside of the electric pump motor. Replacement ball bearings cost between $5 – $12 dollars depending on what HP your pool pump is. To replace the bearings on your pool pump you will need a few specialty tools like nut drivers and electric motor bearing pullers. Replacing the motor bearings yourself can take between 1 – 3 hours depending on your mechanical skill set.
If you feel you can not replace the ball bearings inside of your pool pump yourself, you can buy a new electric motor for it or look for an armature or small motor repair shop in your local neighborhood and they can repair it for you. If you cannot find a pump or motor repair shop in your area you can use the WeT HeaD Mail In Pool Pump Repair Service.
Impeller Has Spun Off The Pump Shaft
Sometimes when the pool runs low on water the pump will start to suck in air and then over time the pump can loose its prime. When this happens the pool pump starts to run dry and when the pump runs for an extended amount of time, this amount of water that is left in the pool pumps volute will start to boil and create steam.
When that water in the pump starts to steam up it will cause the mechanical seal inside of the pump to fail. When this happens the suction side fitting in your pump can also start to melt and become loose. If you have over heated your pool pump then chances are you are going to have to replace your pump seal.
Now, if the pump runs long enough the impeller will start to get really hot. inside that impeller shaft is a brass insert that will come loose or separate when the impeller shaft gets hot enough. When that happens the impeller will start to rattle around inside of the pump diffuser and you will hear a loud noise as the pool pump runs.
Pump Motor Is Humming Really Loud But Not Pumping
If you have just tried to start your pool pump motor and all you hear is a loud humming from the electric motor then chances are the ball bearings inside of the motor have seized up and will not turn. When this happens you will usually have to have your pool pump replaced or rebuilt.
However there is something you can try before you run out and repair or replace the motor on your pool pump. What you can do is the following. You can grab a regular hammer and someone to help you for a minute or two. What you will want to do is take the hammer and forcefully tap the top of the motor casing a few times as your helper turns the switch to the pump on and off a few times. Sometimes “jarring” the pump motor a few times will knock off any surface rust between the electric motor’s armature and the magnets on the motor windings and your pump will start up again. This does not always work but is worth a try.
if you have tried jarring your pump motor a few times and the pump is still just making a loud humming sound then you will most likely have to either repair the motor bearings yourself, replace the motor or bring the pump down to a repair shop to have the bearings and seal replaced.