How to fix a malfunctioning sump pump?

Question

How to fix a malfunctioning sump pump?

Learn how to fix a malfunctioning sump pump with these helpful tips and techniques. Don't let a faulty pump flood your basement any longer.

Subject: Plumbing - Sub Subject: Sump pump troubleshooting
Date: 1/8/2024 Status: SOLVED
2 answered / 1 voted, viewed icon

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score 95 · Accepted Answer

How to Fix a Malfunctioning Sump Pump

If you have a basement or a crawl space, chances are you have a sump pump to keep it dry. However, like any mechanical device, sump pumps can sometimes malfunction and fail to operate effectively. This article will guide you through the steps to fix a malfunctioning sump pump.

Step 1: Safety First

Before attempting to fix your sump pump, ensure your safety by following these precautions:

Turn off the electrical supply to the pump.
Make sure you are wearing protective gear, such as gloves and safety goggles.
If the area is flooded, use a wet/dry vacuum or pump to remove the water.

Step 2: Inspect the Unit

Start by visually inspecting the sump pump unit for any visible damage or obstructions. Check for loose or disconnected wires, broken or clogged pipes, or excessive rust or corrosion. If you find any issues, address them accordingly.

Step 3: Check the Float Switch

The float switch is responsible for activating the pump when the water level rises. Ensure that the float switch is not stuck or obstructed. Gently lift the float switch and listen for a clicking sound, indicating its proper functioning. If the switch appears faulty, you may need to replace it.

Step 4: Test the Check Valve

The check valve prevents water from flowing back into the sump pit when the pump shuts off. Check if the check valve is installed correctly and functioning as expected. Remove the check valve and inspect it for any debris or obstructions that may hinder its operation. Clean it thoroughly and reinstall if necessary.

Step 5: Clean the Impeller

The impeller is a crucial component that pushes water out of the sump pit. Over time, debris can accumulate around it, causing it to become jammed or ineffective. Disconnect the pump from the discharge pipe and remove the impeller cover. Clear any debris or obstructions using a small brush or cloth. Reassemble and reconnect the pump to the discharge pipe.

Step 6: Test the Power Source

Check if there is a power supply issue leading to the malfunction of the sump pump. Ensure the circuit breaker or fuse providing power to the pump is not tripped or blown. Also, check the electrical connections to ensure they are secure and undamaged. If needed, consult an electrician to address any electrical problems.

Step 7: Conduct a Test Run

Once you have inspected and addressed any issues, it's time to test the sump pump. Slowly pour water into the sump pit, keeping an eye on the pump as it activates and removes the water. Ensure the pump is cycling on and off properly, and the water is being discharged away from the foundation. If the pump is still malfunctioning, it may be time to consider contacting a professional.

Conclusion

A malfunctioning sump pump can result in potential water damage to your basement or crawl space. By following these steps, you can attempt to fix the issues with the pump yourself. However, in case you are unsure or uncomfortable with the process, it is always recommended to seek professional assistance to avoid any further damage or safety hazards.

How to fix a malfunctioning sump pump?