Quick Answer

If your pool pump is not turning on, the most common causes are tripped breakers, blown fuses, timer issues, bad capacitors, faulty wiring, or a failing motor. In some cases, the pump may also be overheating and shutting itself off as a safety feature. Identifying whether the issue is electrical, mechanical, or control-related is the first step to fixing it safely.

Quick Troubleshooting Checklist

Before calling for service, check these:

• Make sure the breaker is on

• Reset any GFCI outlets

• Check your pool timer settings

• Listen for clicking or humming sounds

• Inspect for visible burn marks or melted wires

• Make sure the motor shaft spins freely

⚠️ If you smell burning or see smoke, turn off power immediately.

Common Causes of a Pool Pump Not Turning On

1. Tripped Breaker or Blown Fuse

Electrical surges, overheating, or water intrusion can trip breakers or blow fuses. If the breaker keeps tripping repeatedly, there is an underlying electrical problem.

2. Bad Capacitor

Capacitors help start the motor. If the pump hums but won’t start, a bad capacitor is likely the cause.

3. Faulty Timer or Automation System

If your pool timer fails or loses power, the pump will not receive a start signal.

4. Motor Failure

Older motors may fail from heat buildup, worn bearings, or electrical breakdown.

Signs include:

• Grinding noises

• Burning smells

• Pump shutting off randomly

5. Wiring or Power Supply Issues

Loose connections, corrosion, or damaged wiring can cut power to the pump entirely.

How to Fix a Pool Pump That Won’t Turn On

1. Shut off power at the breaker

2. Inspect the breaker and timer

3. Reset the system

4. Test voltage at the pump

5. Spin the motor shaft manually

6. Replace faulty capacitors if needed

7. Call a professional if wiring or motor failure is suspected

⚠️ Electrical repairs can be dangerous — professional repair is strongly recommended.

How to Prevent Pool Pump Electrical Failures

• Keep equipment area dry and ventilated

• Protect your system from power surges

• Regularly inspect wiring and timers

• Clean debris from around the motor

• Schedule yearly electrical inspections

When to Call a Pool Pump Repair Professional

Call a professional if:

• Breaker trips repeatedly

• Pump hums but will not start

• Pump starts and stops randomly

• You see sparks, smoke, or melted wiring

• Motor is excessively hot

Pool Pump Repair in Peoria, AZ

If your pump won’t turn on and you’re in Peoria or the West Valley, Triton Pools provides fast and safe pool pump diagnostics and repairs.

• 4.9★ rating with 600+ reviews

• Electrical troubleshooting

• Pump motor repair and replacement

• Timer and automation repairs

Schedule your pool pump repair with Triton Pools today.

FAQ: Pool Pump Not Turning On

Why does my pool pump hum but not start?
This usually indicates a failed capacitor.

Can I keep resetting the breaker?
No. Repeated breaker trips signal a serious electrical issue.

Is it dangerous to work on my own pool pump?
Yes. Pool pumps use high voltage and should be handled by professionals.

How long does a pool pump motor last?
Most motors last 8–12 years with proper maintenance.