Well Pump Troubleshooting Guide for Central Florida Homeowners

Well pump failures fall into a small number of recognizable patterns. This guide walks the five most common ones, what causes them, what to check before you call, and where the line sits between safe DIY checks and work that should only be done by a licensed contractor. Quality Filters And Pumps services submersible, jet, and irrigation pumps across Central Florida under Florida Water Well Contractor License #7494.

The Five Pump Failure Patterns We See Every Week

Across our service area (Marion, Alachua, Orange, Lake, Polk, Volusia, Seminole, Osceola, and surrounding counties), five failure patterns account for the large majority of pump service calls. Identifying the pattern early helps you decide urgency and helps us bring the right parts on the truck.

1. No water at all (pump won't start).
2. Short-cycling (pump turns on and off every few seconds).
3. Pump runs constantly and never builds full pressure.
4. Low or fluctuating pressure across the whole house.
5. Sputtering air at the faucet.

Pattern 1: No Water (Pump Won't Start)

Start with the electrical side. Check the pump breaker first, then the pressure switch contacts (with the breaker off). A tripped breaker that immediately re-trips on reset is a motor-short signal: stop, do not keep resetting, and call a contractor. Burned pressure-switch contacts are a five minute fix if the rest of the system is healthy. Beyond that, the failure is down the well and requires pulling the pump.

Pattern 2: Short-Cycling

Short-cycling is almost always a waterlogged pressure tank. Modern bladder tanks hold an air charge above the water bladder. When the bladder fails or the air charge leaks out, the tank cannot absorb the pressure swing between the pump's cut-in and cut-out points, so the pump fires every few seconds. Each start hits the motor with full inrush current. A pump that short-cycles unaddressed can burn out a start capacitor in weeks, or a motor winding shortly after. We cover sizing in detail in our pressure tank sizing guide.

Pattern 3: Constant Running, No Pressure Build

When the pump runs but pressure never reaches cut-out, water is going somewhere besides the house. Common causes: a failed check valve at the pump or near the wellhead allowing water to drain back down the drop pipe, a hole or split in the drop pipe itself, a clogged pump intake screen, a pressure switch stuck in the closed position, or on jet-pump setups, loss of prime. We diagnose by isolating each stage from the pressure tank up the well.

Pattern 4: Low or Fluctuating Pressure

Gradual decline in pressure at all fixtures points to worn impeller stages (extremely common on Central Florida hard water), a partially clogged screen, or a pump that has aged past its efficient operating point. Rapid pressure fluctuations point back to the pressure tank or pressure switch. We rule out the tank and switch first because they are cheaper to fix.

Pattern 5: Sputtering Air

Air at the faucet means vacuum loss somewhere in the system. On a submersible setup, that almost always means a failed check valve, a cracked drop pipe, or, in drought years, a pump that is drawing water from a falling water table at the upper edge of its submergence. None of those are normal operating conditions. Sputtering air is a sign to call a contractor before the pump damages itself.

Recommended Action by Symptom

What You Can Check Safely Before Calling

• Pump breaker status (look only, no repeated resets).
• Pressure gauge reading at the tank (note the cut-in and cut-out psi).
• Pressure tank precharge with a tire gauge (read with system depressurized and breaker off, otherwise leave it alone).
• Visible leaks around the pressure tank and pitless adapter.
• Wellhead condition: any signs of damage, ant or snake intrusion, or surface water pooling around the seal.

The minute the diagnostic requires opening the pressure tank, opening the pump control panel, or pulling drop pipe, call a contractor. The risk of motor damage, electrical injury, or dropping the pump into the casing outweighs whatever the service call costs.

Lightning, Surges, and Central Florida

Central Florida has one of the highest lightning-strike densities in the United States. Voltage surges from nearby strikes are a significant cause of pump motor and control board failure here, particularly between June and September. Surge protection at the pump control panel is one of the best return-on-investment upgrades you can make. See our companion article on lightning damage and well pump protection for the engineering background.

Call a Professional If

• The breaker is tripping repeatedly. Continuous resetting risks a motor fire.
• Water has been off for more than an hour and the symptoms above do not match a tank issue.
• You hear the pump running with no water reaching fixtures.
• You smell electrical burning at the control panel or pressure switch.
• Water has changed color or carries sand or sediment that was not there last week.
• Pump is over 10 years old and showing any failure symptom.

Background reading: see signs your well pump is failing, how long pumps typically last, constant pressure systems, and the repair vs replace decision tree. Local pump-repair service pages: Orlando, Ocala, Gainesville, Leesburg, and Lakeland. See the full pump repair service page.

Frequently Asked Questions