Why Is My Sump Pump Running Non-Stop? (And How to Fix It)

• A Faulty Check Valve

One of the primary reasons why your sump pump is running non-stop may be a broken check valve. This is a one-way gate on the discharge pipe that prevents pumped water from flowing back into the pit. If the valve is broken, water will return to the pit, causing the sump to run continuously. A bad check valve can also lead to loud water hammer noises.

You can replace a faulty check by loosening the clamps using a screwdriver, pulling out the old valve, and installing a new one. But it’s never a good idea to handle this job yourself—a sump pump comprises electrical connections that can pose serious risks. Leave the job to a skilled plumber specializing in sump pump repair.

• A Stuck Float Switch

The float switch tells the sump pump when to turn on and off. If the float becomes stuck against the side of the sump pit or gets tangled in debris, it may remain in the "on" position even after the water has been pumped out.

Inspect the float to ensure it moves freely. Removing debris or repositioning the float may solve the problem. If the switch is damaged, call a professional plumbing service to replace it before you encounter further issues.

• A Clogged or Frozen Discharge Line

After the pump removes water from the pit, it travels through the discharge pipe to a safe location outside your home. If this pipe becomes clogged with dirt, leaves, or other debris, or freezes during cold weather, water cannot exit properly.

The pump may continue running while struggling to move water through the blocked line. To prevent this issue, keep the discharge pipe clear and properly insulated.

• The Pump May Be Too Small

Not all sump pumps are designed to handle the same amount of water. If your pump is undersized for your home's drainage needs, it may run almost constantly because it cannot keep up with incoming groundwater. This is why it’s important for an expert to calculate water inflow rate and select the correct horsepower during sump pump installation. A plumbing service in Mckeesport, PA can evaluate your basement's water conditions and determine whether a higher-capacity sump pump would provide better protection.

A constantly running sump pump is a problem even if it seems to be working. A sump pump motor is designed for intermittent use. Continuous running can lead to motor burnout, higher energy costs, and a shortened lifespan. Be sure to seek professional assistance from a professional plumber when you notice constant running or any other sump pump issue.

Do You Need Sump Pump Installation? Contact Mr. Rooter Plumbing Now

If your sump pump is over 7 years old, rusted, or turns on and off constantly, it may be time to invest in a new sump pump installation. Replacing a failing sump pump is necessary to keep your basement or crawl space protected from water damage. Mr. Rooter Plumbing is the name you can rely on when you need reliable sump pump services. With over two decades of reliable service, you can rest assured that you’re working with professional plumbers. Call us now to request a custom quote!