Typical signs
- Pump silent despite high water, short cycling, vibration or water returning.
Where it is often found
- Basement sumps, foundation drainage and backup systems.
What it can mean
- Stuck float, failed check valve, frozen/blocked discharge, power loss or worn pump.
What to check next
- Test with water per manufacturer.
- Check power, alarm, battery and exterior discharge.
Reasonable immediate actions
- Reduce water sources and prepare a safe temporary pump if there is immediate risk.
When to stop and call a professional
- Rising water, electricity near water, failed foundation drainage or impossible discharge.
Prevention
- Seasonal test, cleaning, working check valve, alarm and suitable backup.