Why is my well pump running but no water?

A well pump runs but no water usually points to a loss of prime, a pump, pressure tank, control, or well problem that needs professional diagnosis before the system can be damaged further.

Why a well pump runs but no water in Central Florida

When a pump is humming or running and the faucets stay dry, the problem is usually not one single thing. In Polk County and across Central Florida, we see this on shallow irrigation wells, deeper drinking-water wells, and systems that have been hit by lightning or electrical problems.

Common causes include:

• No water in the well or the water level has dropped below the pump intake
• Loss of prime on a jet pump system
• Clogged impeller or screen
• Broken check valve
• Pressure switch or control issue
• Damaged pump motor
• Air leak in the suction line
• Lightning or power surge damage

If your system is making noise but not delivering water, stop and call a professional. Running the pump dry can overheat and damage the motor.

What to check before you call for pump repair

You can do a few safe checks without opening electrical components or taking the system apart. If the problem is simple, these may help narrow it down.

1. Check the pressure gauge

If you have a pressure tank, look at the gauge. A gauge reading of zero, or a needle that jumps strangely, can point to a pump problem, a pressure switch issue, or a failed tank system.

2. Listen for the pump type

A jet pump that runs but does not move water often has lost prime or has an air leak. A submersible pump that runs without water may have a bad control, failed impellers, or a well-level issue. If you are not sure which pump you have, that is another good reason to call us for diagnosis.

3. Look for signs of a lightning strike

In Central Florida, lightning can damage pump motors, pressure switches, and controls. If the issue started after a storm, our Lightning Damage Repair service covers pump and motor repair after a strike, irrigation electrical repair, pressure-switch and control replacement, and well casing damage assessment.

4. Check whether the problem is only at one faucet

If one faucet is dry but others work, the issue may be inside the plumbing rather than at the well. If every fixture is without water, the well or pump system is the likely source.

Common reasons the pump runs but the house still has no water

A well system can fail in several ways, and the fix depends on which part has failed. We see these most often:

• Prime lost on a jet pump: Air in the suction line or a leak can stop the pump from moving water.
• Bad pressure switch: The pump may run, but the system may not build pressure properly.
• Clogged or worn pump parts: Sand, sediment, or wear can reduce flow.
• Water level drop: The well may be producing less water than the pump needs.
• Damaged check valve: Water can drain back out of the line.
• Electrical damage: The motor may run weakly or not move water at all.

If the well is older or the water quality has changed, sediment and mineral buildup can also affect performance. In some cases, we find that filtration problems and pump problems are happening together.

When water quality issues and pump problems show up together

A system that has hard water, iron staining, sulfur odor, or sediment can develop more than one issue at a time. Mineral buildup can shorten equipment life, and a failing pump can also make water quality seem worse.

Our Water Filtration & Treatment service is for whole-house systems dealing with hard, smelly, or staining well water. We install and service water softeners, chlorination systems, iron removal systems, iron-sequestering systems, and hydrogen sulfide treatment. We also do on-site water testing to find out what is actually in your water.

If you need both pump work and filtration work, Dunham can handle both. That matters because most companies only do one side of the job.

Why this is not a DIY electrical repair

Do not start opening electrical panels, pressure switches, or pump controls if the system is still energized. Pump repairs can involve dangerous voltage, pressurized lines, and heavy equipment. We also do not recommend DIY work on pressure tanks or wells deeper than a hand-driven shallow point.

If you are dealing with a pressure tank, a pressure switch, or a deeper well, call a licensed professional. Dunham Well Drilling is a Licensed Water Well Drilling Contractor and a Florida Ground Water Association (FGWA) member serving Polk County and Central Florida.

How Dunham diagnoses and repairs no-water well problems

We have been doing this since 1950, and our shop in Winter Haven is built for real troubleshooting, not guesswork. Our Pump Repair & Installation service covers residential pumps, irrigation pumps, turbine pumps, industrial pumps, centrifugal pumps, and pressure tanks.

A big advantage of calling Dunham is our full-line machine shop. We can rebuild pumps and turbines in-house, and we carry Goulds, Sta-Rite, Grundfos, and Schaefer new and used. That helps when a repair is the better answer than a replacement.

We also handle Water Well Drilling for residential, agricultural, and commercial properties. If the pump is fine but the well itself has failed, collapsed, or can no longer produce enough water, a new well may be the right solution.

When to call us for a no-water well emergency

Call right away if you have a drinking water well that has stopped working or a mobile-home-park well that is down. Those are the situations we treat as emergencies.

We answer calls with a 24/7 answering service, and calls are returned within 48 hours. If you need help in Winter Haven or anywhere in our Polk County and Central Florida service area, call (863) 965-2881. With 76 years in business, a full machine shop, and the ability to diagnose pumps, wells, and filtration systems under one roof, Dunham can get to the real cause instead of guessing.