Why Your Sump Pump Keeps Running Nonstop

Is It Normal for a Sump Pump to Run Continuously?

During heavy rainfall or peak snowmelt season, sump pumps usually run more to disperse the excess water going toward your foundation. This means that it has to work harder to keep your indoor spaces dry and safe. However, running nonstop despite clearing the pit is not normal. If your sump pump unit has been going for hours or even days without cycling off, call a reputable plumbing service quickly before the motor burns out. The last thing you want is an expensive sump pump replacement in the middle of the wet season, leaving a significant dent in your finances.

Common Causes of a Constantly Running Sump Pump

As a property owner, familiarizing yourself with the common causes of a sump pump running nonstop can help you act quickly and prevent system failure when you need it most. Let’s delve into the most common causes of a constantly running sump pump to ensure early intervention and lasting protection.

Stuck or Faulty Float Switch

One of the most common reasons for sump pumps running nonstop is a faulty or stuck float switch. The float switch acts as the brain of the entire system, as it tells the pump when to turn on and shut off. Over time, worn-out components and other issues can leave the float switch stuck in the “on” setting, forcing the pump to run continuously even when it clears water in the pit. If your system is still running but the pit looks dry, call a plumber to inspect the float switch and determine whether sump pump repair or replacement is necessary.

Frozen or Blocked Discharge Line

A discharge line is strategically connected to your pit or basin, carrying pumped water away from the foundation. During the cold months, discharge lines are prone to freezing, especially if there’s lingering moisture. If left unattended, frozen pipes can obstruct water flow, creating a loop where the system runs nonstop without actually removing any water. This is especially common in early spring, when discharge lines near ground level freeze solid. While regularly thawing or insulating these pipes can resolve the problem, recurring cases suggest a bigger problem that calls for a full sump pump replacement.

Water Recirculating Back into the Pit

A frozen discharge line is not the only reason for backflow into the pit, as a discharge line that’s emptying too close to the foundation may be the cause. Plumbing service professionals recommend a long discharge line that can disperse water at least 10 feet away from the foundation. If your system only directs water a few feet from the base, the pit may fill up quickly before the pit dries, leading to constant running.

Call a Licensed Plumber Today

Do not wait until it is too late to fix underlying problems. Schedule a sump pump inspection today with the experts from Mr. Rooter Plumbing and get ahead of winter-related hazards. We can diagnose your system, clear accumulated discharge, repair system failure, and ensure lasting protection against indoor flooding.