Last updated: October 2026
A well pump that won't shut off usually has one of four problems: a leak somewhere in the system, a stuck or failed pressure switch, a well that's drawing down so the pump can't build pressure, or a worn pump that can no longer reach its shut-off pressure. A pump that runs nonstop overheats and wears out fast — and if the well runs dry, it can burn up. If yours is running constantly, turn it off at the breaker and get it diagnosed.
What Should You Check First?
- The pressure gauge: is pressure climbing, holding steady below cut-off, or near zero?
- Leaks: running toilets, dripping hose bibs, wet spots in the yard along the water line.
- The pressure switch: clicking, chattering or a switch that never opens.
Don't open the switch cover or work on wiring yourself — well electrical work is dangerous.
What Causes a Pump to Run Constantly?
| Cause | Typical sign |
|---|---|
| Leak in the line or house | Pressure slowly drops, pump keeps cycling or running |
| Stuck pressure switch | Pressure reaches normal but pump never stops |
| Well drawdown | Sputtering faucets, air, weak flow |
| Worn pump | Pressure plateaus below cut-off |
| Broken drop pipe | Little or no pressure gain at all |
Can a Running Pump Damage Itself?
Yes. A pump that runs dry or runs without stopping overheats. That's how a simple switch or leak problem turns into a pump replacement. Shutting it off quickly protects the motor.
How Do We Diagnose It?
Diagnosis before prescription. We check pressure, amperage, the switch and the system for leaks before recommending anything. Many of these fixes — like a pressure switch — are parts we carry on the truck. If the pump itself is worn out, see our well pump replacement page.
Frequently Asked Questions
Is it safe to leave a pump running overnight?
No. Turn it off at the breaker and call. Running dry can destroy the pump.
Could a bad pressure tank cause this?
A failing tank usually causes rapid on-off cycling rather than nonstop running. See signs of a failing pressure tank.
Do you offer emergency service?
Yes — same-day across our North Texas service area. See emergency well service.
Pump won't stop? Call 817-374-2548 now or tell us what your well is doing — we'll tell you what it needs.