Troubleshooting a Non-Functioning Septic Pump: Causes and Solutions

Ram Babu
2 min readMay 27, 2023

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A septic pump plays a vital role in maintaining the proper functioning of a septic system. It is responsible for transferring wastewater from the septic tank to the drain field or sewage treatment facility.

However, when a septic pump stops working, it can lead to various issues, such as backups, foul odors, and potential damage to the septic system. In this article, we will explore the common causes of a non-functioning septic pump and provide solutions to rectify the problem.

Power Supply Issues:

One of the first things to check when your septic pump is not working is the power supply. Ensure that the pump is receiving electricity and that the circuit breaker or fuse controlling the pump is intact.

Sometimes, power outages or tripped breakers can be the reason for the pump failure. If the power supply is the issue, reset the breaker or replace the blown fuse to restore power.

Float Switch Problems:

The float switch is a crucial component that activates the septic pump when the wastewater level in the tank reaches a certain point. If the float switch malfunctions or becomes stuck, the pump may not turn on.

Check the float switch to see if it is properly connected and moving freely. Cleaning any debris or obstructions around the float switch can also help restore its functionality.

Clogged Pump or Pipes:

Septic pumps and pipes can become clogged over time due to the accumulation of solid waste, grease, or other debris. A clogged pump or pipe can hinder the flow of wastewater, causing the pump to stop working.

To address this issue, inspect the pump and pipes for any signs of clogging. If clogging is detected, professional cleaning or pumping services may be required to remove the obstruction and restore the pump’s functionality.

Pump Mechanical Failure:

Like any mechanical device, septic pumps can experience mechanical failures over time. Motor issues, worn-out parts, or damaged components can cause the pump to stop working altogether.

In such cases, it is best to contact a licensed septic system professional who can diagnose the problem and determine if repairs or replacement of the pump are necessary.

Incorrect Pump Sizing:

In some instances, a septic pump may not be adequately sized for the specific needs of the septic system. If the pump is undersized, it may struggle to handle the wastewater volume, leading to premature failure.

Conversely, an oversized pump may experience frequent on-off cycles, leading to increased wear and tear. Consult with a septic system professional to ensure that the pump is correctly sized for your system’s requirements.

Conclusion:
A non-functioning septic pump can disrupt the proper operation of a septic system, potentially causing backups and costly repairs. By troubleshooting the common causes mentioned above, you can identify and address the underlying issues.

However, it is important to remember that septic system maintenance and repairs are best left to professionals. Regular inspections and servicing of the septic system can help prevent pump failures and ensure the longevity of the entire system, promoting a healthy and functional wastewater management system for your property.

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