Well Pump Running But No Water? Causes & Solutions
⚠️ IMPORTANT: If your pump is running but not producing water, turn it off at the breaker immediately. Running a pump dry causes rapid damage to the motor and seals. Diagnose before running again.
Quick Answer: Most common causes: low water level in well (ran dry), lost prime (jet pumps), frozen pipes, broken drop pipe, or pump failure. Turn off pump immediately to prevent damage. Check the simple things first (valves, frozen pipes) before assuming expensive repairs.
First Steps (Emergency)
1. Turn Off the Pump
- Flip the breaker to the pump
- Don't let it run dry—damages pump quickly
- A few minutes dry can ruin seals
2. Check the Obvious
- Is a valve closed somewhere?
- Is it freezing? Check for frozen pipes
- Did you just use a lot of water (ran well dry)?
- Any recent work on plumbing or well?
3. Check Pressure Gauge
- Briefly turn pump on (30 seconds max)
- Watch gauge near pressure tank
- No pressure buildup: Pump not moving water
- Some pressure: Blockage or closed valve
Common Causes
| Cause | Signs | Fix |
|---|---|---|
| Low water level | Heavy recent use, drought | Wait for recovery |
| Lost prime (jet pump) | Pump runs but no suction | Re-prime pump |
| Frozen pipe | Cold weather, exposed pipes | Thaw carefully |
| Broken drop pipe | Submersible pump, no water | Pull pump to repair |
| Failed pump | Pump runs but nothing happens | Replace pump |
| Closed valve | After recent work | Open valve |
Low Water Level (Well Ran Dry)
Common Causes
- Heavy water use (irrigation, filling pool)
- Multiple fixtures running
- Drought conditions
- Low-yield well during peak demand
What to Do
- Turn off pump
- Wait 30-60 minutes for well to recover
- Try again briefly
- If no recovery, wait longer or call professional
Signs It's the Water Level
- Water was sputtering before stopping
- You were using a lot of water
- Pump got louder before water stopped
- This has happened before during heavy use
Long-term Solutions
- Install low-water cutoff switch
- Add storage tank for buffer
- Deepen well or lower pump
- Drill new well in better location
Pump Problems
Jet Pump Lost Prime
- Jet pumps must be primed (filled with water)
- Air leak in suction line loses prime
- Foot valve not holding
How to Re-Prime
- Turn off pump
- Remove priming plug
- Fill pump housing with water
- Replace plug, turn on pump
- May take several attempts
Submersible Pump Failure
- Worn impellers (no longer moves water)
- Motor running but shaft disconnected
- Pump pulling air (water level dropped)
Signs of Pump Failure
- Pump hums but produces nothing
- No pressure buildup at all
- Pump is old (10+ years)
- Performance was declining gradually
Pipe Issues
Frozen Pipes
- Common in unheated spaces
- Check exposed pipes in pump house
- Thaw carefully with heat tape or hair dryer
- Never use open flame
Broken Drop Pipe
- Pipe from pump to surface has cracked/broken
- Water pumps out but falls back into well
- Requires pulling pump to repair
- Professional service needed
Clogged Pipe or Screen
- Sediment blocking intake
- Scale buildup in pipes
- May need flushing or replacement
When to Call a Professional
Call Immediately If
- You smell burning or electrical odor
- Pump makes grinding or unusual sounds
- Water didn't recover after waiting
- You're not comfortable troubleshooting
Call Soon If
- Problem keeps recurring
- Pump is old and declining
- You need to diagnose submersible pump
- Drop pipe suspected
What to Tell the Technician
- When problem started
- What you were doing when it happened
- Any sounds or smells noticed
- What you've already checked
- Age of pump if known
Frequently Asked Questions
Can I damage my pump by running it dry?
Yes—running dry quickly damages motor windings and seals. Turn off immediately if no water is coming out.
How long should I wait if my well ran dry?
Start with 30-60 minutes. Some wells need several hours. Low-yield wells may need overnight recovery.
Why would a submersible pump suddenly stop producing water?
Common causes: water level dropped below pump, drop pipe broke, pump failed, or check valve stuck closed.
Can a well run dry permanently?
Rarely permanent. Usually recovers with time. If it doesn't recover, you may need to deepen well, lower pump, or drill new well.
How do I know if my pump is bad?
If pump runs, draws proper amps, but produces no water or pressure even with adequate water level—pump has likely failed.
No Water Emergency?
We provide emergency well service. Call now and we'll get your water running again.