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Why Your Well Pump Keeps Tripping the Breaker

By Oasis Well Service · September 11, 2026 · Updated September 13, 2026

A well pump tripping the breaker is the system telling you something is wrong. You can reset it once. If it trips again, leave it off and call 703-776-0996. Here is why it happens and what our Prince William crew checks.

First, What to Do Right Now

A breaker trips to protect your wiring and your equipment. When the well breaker trips, the safe steps are short and simple.

  1. Reset the well breaker in your panel one time.
  2. If it holds and the water comes back, keep an eye on it and call us to talk it through.
  3. If it trips again, leave it OFF. Do not keep resetting it.
  4. Call 703-776-0996 if you are out of water, or 703-791-3981 if you still have some.

Please do not open the pressure switch cover or the pump control box. Those parts carry live power, and a breaker that trips is a sign that something inside may already be damaged. Resetting a breaker over and over can turn a repair into a replacement, and it is a real shock and fire risk.

Common Reasons for a Well Pump Tripping the Breaker

A tripped breaker is a symptom. The cause is usually somewhere between the panel and the bottom of the well. Here are the ones we see most.

A worn pump motor

As a pump motor wears, it can draw more power than it should. Eventually it draws enough to trip the breaker. This is common on older pumps near the end of their life, and a well pump lasts on average 10 to 15 years.

Damaged wire in the well

The wire that runs down to the pump can wear against the casing or break down with age. A short in that wire will trip the breaker, sometimes right away.

A failing part in the control box

Many pumps have a control box in the basement with a capacitor and other parts that help the motor start. When one fails, the motor can struggle and pull too much current.

Lightning or a power surge

Storms are hard on well equipment. A nearby strike or a surge can damage the pump, the switch or the control box. If the trouble started right after a storm, tell us when you call.

Short cycling

When a pressure tank loses its air charge, the pump starts and stops over and over. All those starts heat up the motor and can end in a tripped breaker. The pressure tank is often part of the fix.

A tired breaker

Now and then the breaker itself is the problem. That is less common than the causes above, but it gets checked.

A pump that runs too long

If a leak in the line, a running toilet or a worn pump keeps the motor running far longer than it should, heat builds up. Look for water pooling near the well or listen for hissing at the casing. A pump that never shuts off is worth a call even before the breaker trips.

The One Check You Can Do Safely

With the well breaker OFF, run cold water until it stops. Then check the air pressure at the valve on top of the pressure tank with a tire gauge, the same kind you use on a car. It should read about 2 psi under the pressure switch low setting, which is around 38 on a common 40-60 switch. Our step-by-step guide to checking pressure tank pressure walks through it.

If the tank reads very low or you get water out of the air valve, the tank may be waterlogged. That is useful information to share when you call.

Tripped Breaker or Tripped Switch?

These get confused. Some pressure switches have a low-pressure cutoff with an outside lever. After a power outage, that switch can drop out and will not restart on its own, even though the breaker is fine. We explain that situation in lost water after a power outage. The difference matters, and we can often sort it out over the phone.

Things to Note Before You Call

A few details help us figure out the cause faster, and sometimes let us sort it out by phone:

  • Did the breaker trip right away when you reset it, or after the pump ran for a while?
  • Was there a storm or power outage recently?
  • Have you noticed short cycling, sputtering faucets or low pressure in the past few weeks?
  • Roughly how old is the pump, if you know?

What We Do When We Get There

We test the pump circuit from the panel down, check the control box and switch, and measure what the motor is drawing. From there we can tell you whether it is a part, the wire or the pump itself. If a new pump is needed, we install Gould, Myers and Grundfos pumps with a 5-year warranty on the install. More on that at our well pump repair page.

No-water calls take priority. That goes for farms off Sudley Road in Catharpin and rural homes near the airport in Midland. Our emergency no-water service runs 24/7. If you want the full list of warning signs, see 7 signs your well pump is failing.

Questions we hear a lot

Is it safe to reset my well pump breaker?

Resetting the well breaker one time is fine. If it trips again, leave it off and call, because repeated resets can damage the pump and create a shock or fire risk. Call 703-776-0996 if you are out of water.

Why does my well pump breaker trip right away?

A breaker that trips the moment you reset it often points to a short, either in the wire down the well or in the pump motor. It can also be a failed part in the control box. This needs a technician, so leave the breaker off.

Why does my well pump trip the breaker after running a while?

A pump that runs for a bit and then trips can be a worn motor overheating or drawing too much current. Short cycling from a waterlogged pressure tank can also do it. A diagnosis will tell you which.

Can a bad pressure tank trip the breaker?

Indirectly, yes. A tank that lost its air charge makes the pump start and stop over and over, which heats up the motor. Checking the tank air with a tire gauge, with the breaker off, can help point to the cause.

Should I open the pressure switch to look inside?

No. The pressure switch and the control box carry live power and should only be opened by a technician. Turning the well breaker off and calling is the safe move.

Can lightning damage a well pump?

Yes. A nearby strike or power surge can damage the pump, the pressure switch or the control box. If your trouble started after a storm, let us know when you call.

Do you come out at night for a tripped well breaker?

Oasis Well Service is available 24/7, and no-water calls get priority. Call 703-776-0996 any time you are out of water. If you still have some water, call 703-791-3981 and we can plan the visit.

How much does it cost to fix a well pump that trips the breaker?

It depends on whether the cause is a small part, the wire or the pump itself, so we do not guess at a price. We offer a free diagnosis within reason, and pump installs come with a 5-year warranty. Call 703-791-3981 to get started.

Still not sure what is going on?

Call and describe it. We will tell you what is safe to check and what needs a technician.