How to Fix a Broken Sump Pump

A sump pump is a critical component in maintaining a dry and safe basement, especially in areas prone to flooding or heavy rainfall. When it fails, the risk of water damage to your home significantly increases, potentially leading to costly repairs and mold growth.

How to Fix a Broken Sump Pump

Understanding how to fix a broken sump pump can save you from unnecessary stress and expenses. Whether the problem lies in a power supply issue, a stuck float switch, or a clogged discharge line, learning the steps to troubleshoot and repair these problems can help restore your pump’s functionality and protect your property.

Importance of a Working Sump Pump

A functioning sump pump is essential not only for maintaining a dry basement but also for safeguarding your home’s structural integrity. By efficiently removing water that accumulates in the sump basin, it prevents the risk of water seeping into the foundation, which can cause cracks and compromise the foundation’s stability over time.

Additionally, a reliable sump pump helps in reducing humidity levels in the basement, which is crucial for preventing mold and mildew growth. This creates a healthier environment in your home and reduces potential health risks associated with mold exposure.

Signs of a Broken Sump Pump

Identifying the signs of a broken sump pump early can prevent extensive water damage to your home. One of the most obvious signs is an unusual noise coming from the pump, which could indicate a mechanical problem or trapped debris. Additionally, if you notice the sump pit filling up with water but the pump isn’t activating, it might suggest an issue with the float switch.

Continual cycling on and off of the pump without effectively removing water is another red flag, often pointing to an inadequately sized pump or discharge line problems. Water stains and dampness around the basement may also signal that the sump pump is not operating efficiently.

Continual Cycling on 
And Off of the Pump

10 Methods How to Fix a Broken Sump Pump

1. Check the Power Supply

Before diving into more complex repairs, ensure that your sump pump is receiving power. It’s easy to overlook this step, but sometimes the issue could be as simple as a disconnected or faulty power source. Inspect the power cord and make sure it’s securely plugged into a working outlet. You can test the outlet by plugging in another device, such as a lamp or fan, to see if it works.

If the outlet isn’t functioning, try resetting the circuit breaker or using a different outlet. Additionally, inspect the power cord for any visible damage and replace it if necessary. A sump pump that isn’t receiving power won’t work, no matter how many other components you check.

2. Inspect the Float Switch

The float switch is a crucial component that controls when the sump pump turns on and off. If the float switch gets stuck or damaged, it can cause the pump to stop working. Check if the float is moving freely within the sump pit. Sometimes debris or dirt can cause it to get stuck, preventing the pump from activating.

Clean the area around the float and ensure that it has enough room to move up and down as the water level changes. If the float switch is damaged or worn out, you may need to replace it with a new one. Replacing a float switch is a relatively simple fix and can restore proper operation to your sump pump.

3. Clean Out the Sump Pit

A dirty sump pit can be a significant cause of sump pump failure. Over time, dirt, debris, and sludge can accumulate in the pit, potentially clogging the pump or obstructing the float switch. Turn off the sump pump and remove any visible debris from the pit using a bucket or small shovel.

After removing larger debris, rinse the pit with a garden hose to clean out any remaining sludge. Keeping the sump pit clean will ensure that the pump can work efficiently without blockages, and it helps prevent unnecessary wear and tear on the pump motor.

A Dirty Sump Pit 
Can Be a Significant

4. Check for Clogged Discharge Lines

If the sump pump is running but water isn’t being discharged properly, the issue might lie in the discharge lines. Discharge pipes can become clogged with debris, dirt, or even ice in colder weather, preventing the pump from draining water effectively. Disconnect the discharge line and inspect it for any blockages.

Use a plumber’s snake or high-pressure water to clear out any obstructions. For frozen pipes, consider adding insulation or heat tape to prevent freezing during winter months. A clear discharge line is essential for efficient water removal, so regular maintenance of this component is key to preventing future issues.

5. Test the Check Valve

Most sump pump systems include a check valve that prevents water from flowing back into the sump pit after it has been pumped out. If the check valve is faulty or improperly installed, it can cause water to flow back, forcing the pump to work harder and potentially leading to failure.

To test the check valve, disconnect it from the discharge pipe and inspect it for debris or damage. If the valve is stuck open or closed, clean or replace it. When reinstalling, make sure the arrow on the check valve is pointing in the correct direction, toward the discharge point, to ensure proper operation.

6. Lubricate the Pump Motor

A sump pump motor requires periodic lubrication to operate smoothly. Over time, the motor may begin to overheat or seize if it hasn’t been lubricated properly. If you notice that the pump is making unusual noises or running inefficiently, check the manufacturer’s instructions for any recommendations on lubricating the motor.

Some pumps have oil ports where you can apply motor oil, while others may require a different type of lubricant. Regularly lubricating the motor can prolong its life and improve performance. However, not all sump pumps need this maintenance, so be sure to consult the manual before adding lubricant.

7. Reset or Replace the Circuit Breaker

Sump pumps often share circuits with other appliances, which can cause the circuit to overload and trip the breaker. If the sump pump isn’t working and you’ve checked the power source, inspect the circuit breaker panel. If the breaker has tripped, reset it by flipping it back into position.

If the breaker trips again shortly after resetting, there may be an electrical issue, such as an overloaded circuit or a short in the pump’s wiring. In such cases, you may need to move the sump pump to its own dedicated circuit or consult an electrician to diagnose and fix any wiring issues.

Sump Pumps 
Often Share Circuits

8. Examine the Impeller for Blockages

The impeller is a small fan-like component that helps push water out of the sump pump and into the discharge line. If the impeller becomes clogged with debris, the pump may struggle to move water effectively, causing it to overheat or shut down. To check the impeller, disconnect the sump pump from the power source and remove the bottom cover.

Inspect the impeller for any blockages, such as twigs, leaves, or dirt, and remove them carefully. Once cleaned, reassemble the pump and test its performance. A clean impeller is vital for ensuring the sump pump can operate efficiently.

9. Replace a Faulty Sump Pump Motor

If your sump pump motor has burned out or is no longer functioning properly, replacing it may be the only solution. A motor failure can occur due to age, overuse, or lack of maintenance. Before replacing the motor, check whether the pump is still under warranty, as the manufacturer may offer a replacement.

If not, you can purchase a compatible motor and install it yourself. First, disconnect the sump pump from the power source and remove it from the sump pit. Follow the manufacturer’s instructions for removing the old motor and installing the new one. Reassemble the pump and test its operation to ensure the motor replacement was successful.

10. Upgrade to a More Reliable Sump Pump

If you’ve tried several repairs and your sump pump continues to fail, it might be time to consider upgrading to a more reliable model. Sump pumps have a finite lifespan, typically lasting around 7-10 years. If your pump is nearing the end of its life or has experienced frequent breakdowns, investing in a new, more efficient model can save you time and effort in the long run.

Look for a sump pump with features such as battery backup, higher horsepower, or better materials that are resistant to corrosion. A newer, more advanced sump pump will offer peace of mind, especially during heavy rainfall or flooding.

Sump Pump With Features 
Such as Battery Backup

Conclusion

A broken sump pump can lead to severe water damage if not addressed promptly. By following these ten methods, you can troubleshoot and repair common sump pump issues, from power supply problems to mechanical failures.

Regular maintenance, such as cleaning the sump pit, checking the float switch, and inspecting discharge lines, will help extend the life of your pump and prevent future breakdowns. Thanks for reading, and we hope this has given you some inspiration on how to fix a broken sump pump!

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