Pump humming but no water? Stopped working after a storm? Before anyone tells you that you need a new pump — call us. The most common cause of a "dead pump" is a failed capacitor in the control box. We test first. Always.
Serving all 13 Marion County communities
Control box failures produce symptoms that look identical to pump motor failure from the outside. Many Marion County homeowners — and some well service companies — skip the control box test and go straight to recommending a pump replacement. We don't. Every diagnosis starts with the control box.
A pump that hums but produces no water looks exactly like a failed motor from the outside. The symptoms are identical. The diagnosis — and the cost — are completely different. Without testing the control box first, it's impossible to know which one you're dealing with.
Every service call where the pump isn't running starts with a full control box assessment — capacitors tested, overload relay checked, wiring inspected. We identify the actual failed component before quoting any repair. If a capacitor is the problem, we fix the capacitor. We don't sell you a pump you don't need.
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The control box sits above ground near the pressure tank and houses the electrical components that control your submersible pump motor. There are three main components inside — and each one fails in a different, diagnosable way.
Provides the high-power electrical surge that initiates motor rotation when the pump first turns on. Start capacitors have a limited number of start cycles over their life — they're consumable components, not permanent ones.
Maintains stable motor rotation after startup. Unlike the start capacitor, the run capacitor stays active the entire time the pump is running. Gradual degradation reduces motor efficiency before total failure.
Monitors motor temperature and current draw. Trips automatically if the motor overheats or draws excessive current — protecting the motor windings from burnout. Should reset once the motor cools.
Florida leads the nation in lightning strikes every year. Marion County — with its open farmland, horse country, and flat terrain — sees consistent summer storm activity from June through October. Lightning doesn't need to strike your property directly to damage your well pump control box.
A strike anywhere on your electrical grid sends a voltage spike through your home's wiring. The control box, drawing 240V continuously, is directly in that path. Capacitors — which are voltage-sensitive — absorb this surge and fail.
A nearby ground strike travels through the soil and up the well casing — directly to the pump wiring. This is a common failure mode that looks like a random, unexplained pump failure with no storm connection.
Unlike a direct strike, surge damage leaves no burn marks, no tripped breaker, no obvious clue. The control box looks normal. The pump just doesn't work. This is exactly why we test the control box on every post-storm call.
A dedicated surge protector on the pump circuit is the single most effective way to prevent lightning-related control box failures. We install and recommend surge protection on every pump system we service.
We always start with the least invasive, least expensive fix. Here's how we decide which approach is right for your situation.
We replace only the specific component that has failed — typically a start or run capacitor. This is the right approach when:
A full box replacement is the right call when the damage is too widespread for component repair alone:
From the moment you call to water flowing again — here's exactly what happens.
When you call us, we'll ask a few quick questions: when did it stop working, was there recent storm activity, is the pump humming or completely silent, has the breaker tripped? This narrows down the likely cause before we arrive so we bring the right parts. If the pump is humming — confirm the breaker is off before we get there.
We verify the breaker is fully off and test for residual voltage at the control box before opening anything. Control boxes carry 240V — this step is non-negotiable and takes two minutes.
We test the start capacitor, run capacitor, and overload relay individually using a capacitance meter. We inspect wiring for heat damage, arcing, or corrosion. We check the motor lead wiring for insulation breakdown. This is how we find exactly what failed — and what didn't.
We tell you exactly what failed and give you a firm price for the repair before touching anything. Capacitor replacement, overload relay, or full control box — you know the cost before we start. If we also spot a related issue like a pressure switch or tank issue, we'll let you know — but the quote covers only what needs to be done now.
We complete the repair and run a full post-repair system test: motor amperage draw, pump pressure output, switch calibration, and multiple pump cycles to confirm stable operation. We verify the pump is running within spec before we consider the job done. We also discuss surge protection recommendations before we leave.
Same-day response throughout all of Marion County.
We respond to control box failures and capacitor replacements throughout all 13 Marion County communities — same-day urgency, parts on the truck for most common configurations, upfront pricing before we start.
Every hour a humming pump runs without water risks motor burnout. Same-day response throughout all of Marion County.
Then call us — 24/7 Marion County
