Well Pump Keeps Running? Fix It Now!

A malfunctioning pressure switch is often the culprit when a well pump keeps running, leading to potential motor burnout and costly repairs. Grundfos, a leading manufacturer of well pump systems, emphasizes the importance of immediate diagnostics to prevent further damage to their equipment. Ignoring the continuous operation of your well pump can also strain your home’s electrical system, potentially causing overloads. Therefore, understanding the common causes, such as leaks in the foot valve, and promptly addressing why your well pump keeps running is crucial for maintaining a reliable water supply and preventing significant expenses.

Diagnosing and Resolving a Constantly Running Well Pump

A well pump that runs continuously, even when no water is being used, is a clear sign of a problem. Ignoring this issue can lead to pump burnout, increased energy bills, and potentially a complete water system failure. A systematic approach to diagnosis and repair is essential. Here’s a breakdown of the best structure for an article addressing this problem:

1. Introduction: Setting the Stage

Begin by immediately addressing the reader’s concern. Acknowledge the frustration and potential costs associated with a well pump that won’t stop running. Briefly explain the function of a well pump and why continuous operation is abnormal. Highlight the urgency of addressing the issue to prevent further damage.

2. Understanding the Basics: How a Well Pump System Works

This section needs to lay the groundwork for understanding the potential problems.

• Well Pump Types: Briefly explain the difference between submersible and jet pumps. This distinction is crucial, as troubleshooting steps can vary slightly.

• Pressure Tank Function: Elaborate on the role of the pressure tank. Explain how it stores water under pressure and allows the pump to cycle on and off as needed. A failing pressure tank is a common culprit.

• Pressure Switch Operation: Describe how the pressure switch senses the water pressure and signals the pump to turn on or off. Explain the pressure settings (cut-in and cut-out) and their significance.

3. Common Causes of a Constantly Running Well Pump

This is the core of the article. Divide the potential causes into logical categories for easier comprehension.

• Water Leaks:

  • Leaks in the Plumbing: This is a significant area to explore. Explain how even a small leak can cause the pump to run continuously to maintain pressure. Check:
    • Faucets
    • Toilets
    • Underground Pipes
  • Foot Valve Leaks: If applicable to the pump type (especially jet pumps), explain the function of the foot valve in preventing backflow. A leaking foot valve causes the pump to constantly refill the pipe.
  • Well Casing Leaks: While less common, this can occur. Briefly mention it.

• Pressure Tank Issues:

  • Loss of Air Charge: A critical point. Explain how the air bladder in the pressure tank can lose its charge over time. Describe how to check the air pressure using a tire pressure gauge.
  • Waterlogged Tank: If the air bladder is completely compromised, the tank becomes waterlogged. Explain the consequences and how to identify this issue (e.g., tapping on the tank to listen for hollowness).
  • Tank Size: A pump may run almost constantly if a tank is too small for the water demand.

• Pressure Switch Malfunctions:

  • Faulty Switch: The switch itself might be defective, failing to properly sense pressure and turning off the pump.
  • Incorrect Settings: The pressure switch settings might be misadjusted, causing the pump to run longer than necessary.
  • Clogged Switch Port: Debris can clog the small port on the pressure switch, preventing accurate pressure readings.

• Pump Problems:

  • Worn Pump: An aging pump may lose its ability to efficiently build pressure, leading to prolonged operation.
  • Damaged Impeller (Submersible Pumps): Damage to the impeller can reduce the pump’s output, causing it to run longer.
  • Clogged Well Screen: Silt or debris can clog the well screen, restricting water flow and forcing the pump to work harder.

4. Troubleshooting Steps: A Systematic Approach

Guide the reader through a logical troubleshooting process. Emphasize safety precautions, such as turning off the power to the pump before working on any electrical components.

1. Check for Obvious Leaks: Start by inspecting all visible plumbing fixtures and pipes for leaks.
2. Test the Pressure Tank: Follow these steps:
   • Turn off the pump breaker.
   • Drain all the water from the system by opening a faucet at the lowest point.
   • Use a tire pressure gauge to check the air pressure at the Schrader valve (typically located at the top of the tank). The pressure should be slightly below the pump’s cut-in pressure (usually 2 PSI below).
   • If water comes out of the Schrader valve, the bladder is ruptured, and the tank needs to be replaced.
3. Inspect the Pressure Switch:
   • Turn off the power.
   • Visually inspect the switch for corrosion or damage.
   • Clean the port with a small wire or needle.
   • Verify the pressure settings against the pump’s specifications.
4. Listen to the Pump: Pay attention to any unusual noises coming from the pump. This might indicate a worn pump or a clogged well screen.
5. Water Testing: Test the water to ensure it does not contain excessive sand or other debris.

5. Repair Solutions: DIY vs. Professional Help

For each potential cause identified in Section 3, offer potential solutions. Clearly differentiate between tasks that a homeowner can reasonably handle (e.g., replacing a pressure switch, adjusting pressure settings) and those that require a qualified professional (e.g., replacing a submersible pump, repairing a well casing).

Problem	DIY Solution	Professional Solution
Leaking Faucet	Replace faucet washers or the entire faucet.	(If DIY fails) Plumbing service to diagnose and repair complex leaks.
Low Pressure Tank Charge	Recharge the tank with air using an air compressor.	N/A
Faulty Pressure Switch	Replace the pressure switch (after ensuring power is off).	Electrician/Plumber can assess the electrical system.
Well Casing Leak	N/A	Well repair specialist to assess the damage and recommend repair.
Clogged Well Screen	N/A	Well service company to pull the pump and clean or replace the screen.

6. Prevention: Maintaining Your Well System

Offer advice on how to prevent a constantly running well pump in the future. This could include:

• Regularly checking the pressure tank’s air charge.
• Inspecting plumbing fixtures for leaks.
• Having the well system professionally inspected every few years.
• Using a whole-house water filter to prevent sediment buildup.

By following this structure, the article will be informative, easy to understand, and provide readers with a clear path to diagnose and resolve a well pump that keeps running.

So, if your well pump keeps running and driving up your electricity bill – not to mention the potential for a major headache – don’t ignore it! Hopefully, this gives you a good starting point for troubleshooting the issue. But remember, when in doubt, call a qualified well pump technician. They’ve got the expertise to diagnose the problem accurately and get your water flowing smoothly again.