Humming sump pump? here’s the secret to unravel the mystery
What To Know
- The float switch detects the water level in the sump basin and turns the pump on and off accordingly.
- To remove air from the system, disconnect the discharge line from the pump and run the pump until water flows out.
- If the pump is misaligned, loosen the bolts holding it in place and adjust it until it is level.
A sump pump is an essential appliance in many homes, working tirelessly to keep basements and crawl spaces dry. However, when your sump pump starts humming, it can be a cause for concern. This blog post will delve into the possible reasons behind this annoying sound and provide solutions to restore peace and quiet to your home.
Common Causes of Sump Pump Humming
1. Air in the System
Air can enter the sump pump when it runs dry or when the discharge line is not properly sealed. This air can cause the pump to cavitate, creating a humming noise.
2. Worn Impeller
The impeller is the part of the sump pump that spins to move water. Over time, the impeller can become worn or damaged, leading to humming.
3. Clogged Discharge Line
A clogged discharge line can restrict the flow of water, causing the pump to work harder and hum. Debris, dirt, or ice can accumulate in the line.
4. Electrical Issues
Electrical problems can also cause sump pump humming. Loose connections, faulty wiring, or a failing motor can all lead to humming.
5. Float Switch Problems
The float switch detects the water level in the sump basin and turns the pump on and off accordingly. A faulty float switch can cause the pump to run continuously, resulting in humming.
6. Misaligned Pump
If the sump pump is not properly aligned, it can put stress on the motor, causing it to hum.
7. Worn Bearings
Bearings support the pump’s rotating parts. Worn or damaged bearings can cause friction and humming.
Solutions to Stop Sump Pump Humming
1. Bleed the Air
To remove air from the system, disconnect the discharge line from the pump and run the pump until water flows out. Reconnect the discharge line and check if the humming has stopped.
2. Replace the Impeller
If the impeller is worn, it needs to be replaced. This requires disassembling the pump and installing a new impeller.
3. Clear the Discharge Line
Disconnect the discharge line and use a snake or auger to remove any clogs. Flush the line with water to ensure it is clear.
4. Check Electrical Connections
Tighten any loose connections and inspect the wiring for damage. If necessary, replace the wiring or call an electrician.
5. Adjust the Float Switch
Check the float switch for proper operation. Adjust the switch so that it turns the pump on when the water level reaches the desired height.
6. Align the Pump
If the pump is misaligned, loosen the bolts holding it in place and adjust it until it is level.
7. Replace Worn Bearings
Replacing worn bearings requires disassembling the pump and installing new bearings. This is a more complex repair that may require professional assistance.
In a nutshell: Restoring Sump Pump Harmony
By identifying the underlying cause of your sump pump humming and applying the appropriate solution, you can restore peace and quiet to your home. Remember to regularly maintain your sump pump to prevent future humming issues and ensure optimal performance.
Answers to Your Questions
Q: Why is my sump pump humming when it’s not running?
A: Humming when the pump is not running may indicate a faulty float switch or electrical problem.
Q: Can I fix a humming sump pump myself?
A: Some basic troubleshooting and repairs, such as bleeding air or checking electrical connections, can be done by homeowners. However, more complex repairs may require professional assistance.
Q: How often should I maintain my sump pump?
A: It is recommended to inspect and maintain your sump pump annually, especially before heavy rain or flooding seasons.
