Sump Pump Not Working
Use dry, above-water observations to check the outlet, float clearance and discharge route without opening the pump or wiring.
Keep guards, panels and safety devices in place. Stop whenever the next action needs tools, live testing, disconnection or access beyond the owner's manual.
Checks you can safely make
- Stay out of the water
Do not enter a flooded area or touch a plug, extension, switch or pump while standing on a wet surface. Start with a dry viewing position.
- Check visible power status
From dry ground, note whether the dedicated GFCI or alarm shows a trip. Do not repeatedly reset a circuit or use an extension cord as a workaround.
- Observe the float
Without reaching into water, look for a float held by a hose, cable or debris. The float must move through the range specified in the pump manual.
- Inspect the exterior discharge
Check whether the outlet is blocked by ice, soil or debris and whether discharged water is flowing back toward the foundation.
Common questions
Can I test a sump pump by reaching into the pit?
Not when water or electrical uncertainty is present. Follow the exact manufacturer procedure and keep all electrical contact dry.
Why does the pump run but the pit refills?
The discharge may be blocked, frozen, too close to the foundation or missing effective backflow control. The pump may also be undersized or worn.
Sources and review basis
This guide limits itself to visible, non-invasive checks and uses current manufacturer or public-safety guidance.