Why Does My Well Pump Short-Cycle or Run Constantly?
A pump that rapidly cycles on and off, or won't shut off, is usually a waterlogged pressure tank, a failing pressure switch, or a leaking check valve. It's urgent: short-cycling overheats the motor and can destroy a pump within weeks. If you hear it clicking on and off every few seconds, shut it off at the breaker to protect it and call.
Firm, itemized price before any work — no surprises.
Two generations on Oregon wells — and counting.
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Wells Served
Across the Willamette Valley & Oregon Coast.Family Owned
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Real neighbors, real wells.
What's Usually Causing It?
Ranked from most to least common.
Waterlogged pressure tank
Ruptured bladder or lost air cushion — the #1 cause. The pump cycles every few seconds because the tank can't hold water.
Failing pressure switch
Worn contacts cutting in and out, telling the pump to start and stop too often.
Leaking check valve
Pressure bleeds back through a failed valve, so the pump has to keep restarting.
System leak — running toilet or line leak
If the pump runs nonstop, water is escaping somewhere. A flapper or a line in the crawl space is common.
Clogged switch nipple
The small port feeding the pressure switch gets blocked, and the switch reads pressure wrong.
What Can I Safely Check First?
Here's why it's urgent — every rapid cycle wears the motor, and a waterlogged tank can become a full pump replacement in weeks. Rule out an obvious running toilet or open fixture. Still cycling? Shut it off at the breaker and call — diagnosing the tank bladder, switch, or check valve is our job. Don't keep running a short-cycling pump.
Stop at surface checks. The pressure switch, 220V wiring, and pulling a pump carry high pressure and dangerous voltage — leave those to a licensed pro.
When Should I Call Right Away?
Any of these means stop troubleshooting and call.
Clicking on and off every few seconds
Shut it off at the breaker — short-cycling can destroy a pump within weeks.
The pump runs and won't shut off
Water is escaping or the pump can't reach shut-off pressure. Turn it off and call.
Still cycling with no fixture running
Rule out a running toilet; if that's not it, the tank, switch, or check valve needs a look.
No water right now? We treat that as an emergency.
- Same-day response
- Most repairs done in one visit
Mon–Sat Emergency Response
What Will It Cost?
Catching it early — tank or switch — is modest. Letting it run risks a costlier pump replacement. The math almost always favors calling now.
What Happens When You Call?
We diagnose first, then give you a firm price — you approve it before we begin.
- First call
Step 1: You call us
Tell us the symptom; we'll tell you what it likely is.
- On site
Step 2: We diagnose on-site
Pump, tank, switch, wiring, and water — the whole system.
- Before any work
Step 3: Upfront price, you approve
Repair options explained straight.
- Usually one visit
Step 4: Fixed with premium parts
Most fixes finished the same visit.
What Do Oregon Neighbors Say?
“Quick and professional when our well pump failed. They made a special drive to get the right pump because ours needed more horsepower than most.”
“I had a deep well pump failure and they made me a priority — out to assess within an hour, and a new pump, pipes, and controller installed by the next day.”
“On time for every appointment, finished faster than expected, and credited me for parts they didn't use. We were only without water about 5 hours while they replaced our pump and pressure tank.”
Why Call Aqua Pro for This?
We diagnose first — no upsell
Often it's a switch, a capacitor, or a tank — not the pump. We tell you straight.
Most fixes done in one visit
Our trucks carry what wells need, so most repairs are finished the day we arrive.
Firm, itemized quote first
You see exactly what it costs and why before we start. No surprise charges.
Two generations, family-owned since 2007
Licensed, bonded, and insured, working Valley and Coast wells every day.
Who Does Our Family Support Locally?
The local charities, chambers and community groups we're proud to stand behind.
What Else Could It Be?
- 01
Low Water Pressure
Pressure tank, switch setting, or a worn pump.
- 02
Pump Won't Turn On
Breaker, pressure switch, capacitor, or motor.
- 03
No Water From Your Well
Failed pump, tripped breaker, or a low well level.
- 04
Air or Sputtering From Faucets
Low water level, a leak, or a pump drawing air.
- 05
Dirty, Sandy, or Cloudy Water
Sediment, a pump set too low, or a worn screen.
- 06
Smelly or Iron-Stained Water
Iron, sulfur, or bacteria we can treat at the source.
Which Service Fixes It?
Where Do We Fix Well Problems?
Aqua Pro covers Linn, Benton, Marion, Polk & Lincoln counties — Valley and Coast, plus the surrounding rural areas.
Don't see your town? Call and we'll confirm.
What Else Do People Ask About Short-Cycling?
Last updated June 2026.
