When a sump pump stops removing water, check the intake screen for debris, the discharge line for blockages or ice, the check valve for sticking, and the float for free movement. If everything looks fine, the pump may be worn out or simply too small for the amount of water coming in.
Safety First
Unplug the pump before touching it or reaching into the pit. Never stand in water while handling cords or outlets. If the basement is already flooding, stay out and get help.
The Pit and Intake
The pump pulls water through a screen at its base. Silt and gravel can clog it, so the motor runs while little water moves. With the pump unplugged, clear what you can see. A pit with a thick layer of sediment may need a full cleaning.
The Path Out
Follow the discharge pipe from the pump to where it leaves the house. Outside, make sure the end is not buried, crushed, clogged with leaves, or frozen. Inside, look at the check valve. It should let water out but not back in. A valve stuck shut blocks the flow, and one installed backward does the same.
The Float and the Pump Itself
Make sure the float rises and falls without catching. If everything checks out but water keeps climbing during storms, the pump may not be strong enough for the groundwater around your home. Loud grinding, a hot motor, or very frequent cycling are signs of a pump that is wearing out.
Going through these checks in order helps you explain the problem clearly when you call.
If the cause is not obvious, the float, valve, and discharge can be diagnosed together. You can also ask about adding a backup pump or high-water alarm for peace of mind. Call JPR Plumbing at (833) 603-1840.