What is what to do when sump pump won't stop running?

Here's some information about what to do when your sump pump won't stop running:

When your sump pump runs constantly, it indicates a problem that needs immediate attention to prevent flooding and potential damage. Here's a breakdown of common causes and troubleshooting steps:

• Check the Float Switch: The <a href="https://www.wikiwhat.page/kavramlar/float%20switch" >float switch</a> is the most common culprit. It may be stuck, obstructed, or damaged.

  • Stuck Float: Ensure the float switch isn't physically obstructed by the sump pump basin, debris, or the pump itself. Gently try to move the float up and down. Clean the area around it to remove any obstructions.
  • Damaged Float: Inspect the float for cracks or leaks. A waterlogged float won't rise properly. If damaged, it needs replacement.
  • Switch Malfunction: The switch itself might be faulty. Consider testing it with a multimeter (if you are familiar with electrical testing) or replace the entire float switch assembly.

• Clogged or Frozen Discharge Line: The <a href="https://www.wikiwhat.page/kavramlar/discharge%20line" >discharge line</a> removes water away from the house.

  • Check for Obstructions: Inspect the discharge line outlet for ice, leaves, dirt, or other debris blocking the flow of water.
  • Thaw Frozen Line: In freezing temperatures, a frozen discharge line is a common problem. Use a hairdryer, heat tape, or pour warm (not boiling) water carefully over the line to thaw it.
  • Ensure Proper Slope: Make sure the discharge line has a downward slope away from the house to prevent water from flowing back and refreezing.

• Check Valve Issues: The <a href="https://www.wikiwhat.page/kavramlar/check%20valve" >check valve</a> prevents water from flowing back into the sump pit after the pump shuts off.

  • Inspect the Check Valve: Ensure the check valve is properly installed and functioning correctly. If it's faulty, water will flow back into the pit, causing the pump to cycle on and off frequently (or run continuously).
  • Clean or Replace: If the check valve is clogged with debris, try cleaning it. If it's damaged or not sealing properly, replace it.

• Constant Water Inflow: If the pump is working correctly, but the water level in the pit remains consistently high, there could be an issue with the amount of water entering the pit. This could be due to:

  • High Water Table: An unusually high water table due to heavy rains or snowmelt can overwhelm the sump pump.
  • Foundation Leaks: Cracks in the foundation can allow groundwater to seep into the pit. Consider sealing any visible cracks.
  • Underground Springs or Seepage: In some cases, underground springs or excessive seepage might be the cause. This might require more extensive solutions like installing a French drain.

• Incorrect Pump Size or Installation:

  • Oversized Pump: An oversized pump can cycle on and off too quickly, potentially leading to continuous running.
  • Improper Installation: Improper installation can also contribute to the problem. Make sure the pump is level and placed on a solid surface.

• Pump Malfunction: While less common than float switch issues, the pump itself could be failing.

  • Overheating: Check if the pump is overheating. If so, unplug it and let it cool down before troubleshooting further.
  • Worn Impeller: The impeller (the rotating part that moves water) might be worn or damaged, reducing the pump's efficiency.

Safety First: Always disconnect the sump pump from the power source before performing any maintenance or repairs. If you're uncomfortable working with electrical components or plumbing, it's best to consult with a qualified plumber or electrician.