Pool Pump Problems & How to Fix Them

1 Sept

Keeping your pool water clean and clear starts with a properly working pool pump. Common pool pump problems—like noisy motors, low water flow, losing prime, or leaks—can affect circulation and water quality. Fortunately, many issues can be fixed quickly with simple maintenance tips or minor repairs. In this guide, we’ll cover the most common pool pump problems and show you how to solve them, helping you enjoy a sparkling pool all season long.

1. Pump Won’t Turn On

What’s Happening: Your pump motor doesn’t start when switched on.
Common Causes: Power supply issues, tripped breaker, or a faulty motor.
How to Fix:

Check the breaker and reset if necessary.
Ensure the pump is plugged in properly.
Inspect the motor for visible damage; if unsure, call a professional.

2. Loud or Unusual Noises

What’s Happening: Pump is making banging, whining, or grinding sounds.
Common Causes: Air trapped in the system, worn bearings, or debris in the impeller.
How to Fix:

Re-prime the pump to remove trapped air.
Clean debris from the impeller.
Replace bearings if worn out.

3. Pump Losing Prime

What’s Happening: Water flow slows or stops because the pump can’t draw water.
Common Causes: Low pool water level, air leaks in the suction line, or blocked skimmer/pump basket.
How to Fix:

Top up the pool water.
Check fittings and seals for leaks.
Clean the pump basket and skimmer.

4. Low Water Flow

What’s Happening: Water isn’t circulating properly.
Common Causes: Clogged filter/pump basket, closed valves, or air in the system.
How to Fix:

Clean the filter and pump basket.
Ensure all valves are open.
Re-prime the pump to remove air.

5. Pump Overheating

What’s Happening: Pump feels very hot or shuts down unexpectedly.
Common Causes: Running dry, clogged filter/impeller, or motor issues.
How to Fix:

Never run the pump without water.
Clean the filter and impeller.
Check motor ventilation.

6. Leaks Around the Pump

What’s Happening: Water leaking from the pump area.
Common Causes: Worn o-rings/seals, cracked pump housing, or loose fittings.
How to Fix:

Replace worn o-rings and seals.
Tighten fittings.
Replace cracked housing if needed.

Pro Tip

Regular inspections and cleaning can prevent most pump issues. Always turn off the pump and disconnect power before attempting any repairs. A little maintenance goes a long way toward keeping your pool sparkling all season.

Michael Ryan