Solar Pool Pump Troubleshooting

Possible problems with solar pool pumps

It's great if your solar pool pump has been running and you've never had any problems. But there will come a day when something goes wrong with your pump and you need to fix it. 

Knowing some of the most common pump problems will help you deal with them when they occur.

Solar Pool Pump Leaking

The most common causes of solar pool pump leaks include damaged impeller housing O-rings, poor shaft seals, poor thread sealant, and constricted threads on the discharge pipe.

In most cases, these parts can be easily purchased and replaced for a fraction of the cost of calling a professional. Identify the leaking part, take the system apart and replace it, and you'll be back up and running in no time.

Solar Water Pump Not Pumping

When water is not drawn into the pump, it cannot reach the filter and pass through the system properly. The first thing to look for is a blockage in the system.

First, check the separator and pump basket to make sure they are not clogged. Next, check the impeller for debris that could impede its motion. Turn on the pump and remove all debris.

Another potential cause could be a leak in the suction line. Since air has less mass than water, the pump will suck in air instead of water. Check the lines for leaks and patch any found.

The Solar Pool Pump Motor Won’t Start

The first thing to check is the circuit breaker to make sure it hasn't been tripped. If the circuit breaker is on and the pump still won't turn on, there may be an electrical problem and you may need to replace the motor.

The Solar Pool Pump Motor Won’t Start

The first thing to check is the circuit breaker to make sure it hasn't been tripped. If the circuit breaker is on and the pump still won't turn on, there may be an electrical problem and you may need to replace the motor.

The Solar Pool Pump Motor Spontaneously Turns Off

If this happens, the motor is likely overheating. Check the pump vents to make sure nothing is blocking airflow. If it keeps happening, you may need to install something to shade the pump if possible.

If the problem persists, it may be an electrical problem, and unless you are an electrician, you may need to call in a professional.

The Solar Pool Pump Motor is Making Noise

All pump motors make some noise. However, if your pump is making a different sound than it is running normally, there may be a problem.

If it's just vibration, putting the pump on a rubber pad might do the trick. But if it's a low growling sound, the problem could be cavitation, which means the pump isn't getting enough water and is sucking in air.