Why has my pool pump suddenly stopped?

Check the breaker first — a trip is common and easy to fix. If it holds after resetting, check the timer, then listen for humming or grinding when powered, which points toward the motor. Silence with a good breaker usually means a wiring or motor fault needing a technician.

My pump runs but nothing comes out of the returns. Why?

Almost always a priming or blockage problem: check the pump and skimmer baskets first, then the water level, then the lid o-ring. If all three check out, air may be entering through a valve or union.

Is it safe to keep resetting a tripping breaker?

No. A breaker that trips again shortly after resetting is detecting a real electrical fault. Repeated resets do not fix anything and can allow further damage. Turn it off and call a technician.

How much does it cost to fix a pool pump that will not turn on?

It depends on the cause: $100–$250 for a breaker or timer issue, $150–$400 for a capacitor, and $250–$700 for motor problems. A full replacement runs $900–$1,900 installed.

Should I just replace the pump instead of diagnosing it?

If it is over eight years old, single-speed, or has failed before, replacement is often the better value — see the repair-versus-replacement guide for the full reasoning.

Pool Pump Not Working

Pool pumps fail in a handful of recognisable ways, and most of the useful diagnosis can be done without tools — breaker, baskets, water level, and the sound it makes.

Diagnose My Pool Problem Pool pump repair

Is it urgent?

Not usually. A pool without circulation for a day or two is not harmed, though algae growth accelerates in warm weather. It becomes worth acting on quickly once water clarity starts to decline, since a green pool costs considerably more to bring back than a clear one.

Work through this in order

Check the breaker first. A tripped breaker is a genuinely common cause of "the pump is dead". If it trips again immediately after resetting, stop and call a technician — that is an electrical fault, not a nuisance trip.
Check the timer. Confirm it has power and the schedule has not been lost, which happens after any power outage on some older timers.
Listen to what it does when powered. Silence points at the motor or the electrical supply. Humming without turning points at a seized impeller or a failed capacitor. Grinding points at bearings.
Check the baskets. A blocked pump or skimmer basket is the single most common cause of weak or no flow.
Check the water level. Below the skimmer mouth means the pump is drawing air rather than water.
Look at the pump lid o-ring. Dried or cracked, this is a very common and very cheap cause of failure to prime.

What each symptom usually means

Symptom to likely cause
What happens	Likely cause	Typical repair
Nothing at all	Breaker, timer, or failed motor	$100–$600
Humming, not turning	Failed capacitor or seized impeller	$150–$400
Grinding or screeching	Failed bearings	$250–$600, or replace
Runs but will not prime	Air leak, blocked basket, low water	$150–$450
Trips the breaker	Motor winding fault	$200–$600, or replace
Runs, then shuts off	Overheating or a failing motor	$250–$700

PoolSavr planning ranges, national, including a service call.

What not to do

Do not open the motor housing. Electrical work inside the motor is for a qualified technician.
Do not keep resetting a breaker that re-trips. That is reporting a genuine fault. Repeated resets risk further damage.
Do not run the pump dry. A pump trying to draw air with no water present will overheat and can destroy the seal within minutes.

How to read a PoolSavr estimate

Step 1
Instant estimate
Based on your project selections and general pricing assumptions. Useful for deciding whether a project is realistic.
Step 2
Measured estimate
Uses your pool, spa, or deck dimensions to price the work against the areas actually being resurfaced, tiled, or replaced.
Step 3
Contractor proposal
Prepared by a licensed professional after inspecting the site. This is the only number that becomes a contract.

PoolSavr is an estimating and matching platform. We do not perform pool work ourselves — licensed local professionals do. Contractors pay PoolSavr for qualified project leads, which is how the estimating tools stay free for homeowners. A PoolSavr estimate is a planning range, never a guaranteed quote — read thefull estimate disclaimer.

Frequently asked questions

Why has my pool pump suddenly stopped?: Check the breaker first — a trip is common and easy to fix. If it holds after resetting, check the timer, then listen for humming or grinding when powered, which points toward the motor. Silence with a good breaker usually means a wiring or motor fault needing a technician.
My pump runs but nothing comes out of the returns. Why?: Almost always a priming or blockage problem: check the pump and skimmer baskets first, then the water level, then the lid o-ring. If all three check out, air may be entering through a valve or union.
Is it safe to keep resetting a tripping breaker?: No. A breaker that trips again shortly after resetting is detecting a real electrical fault. Repeated resets do not fix anything and can allow further damage. Turn it off and call a technician.
How much does it cost to fix a pool pump that will not turn on?: It depends on the cause: $100–$250 for a breaker or timer issue, $150–$400 for a capacitor, and $250–$700 for motor problems. A full replacement runs $900–$1,900 installed.
Should I just replace the pump instead of diagnosing it?: If it is over eight years old, single-speed, or has failed before, replacement is often the better value — see the repair-versus-replacement guide for the full reasoning.

Ready to see what your project costs?

Start with the work you are considering. You will get a preliminary range before anyone asks for your phone number, and you decide whether to request a contractor review at the end.

Diagnose My Pool Problem