This may be caused by a clogged air inlet or airlock. Clear out any debris and make sure the pump starts properly (no trapped air). Problem: This may be caused by a partial blockage, worn components, or insufficient power from the. . Imagine going to your garden or backyard on a fine, sun-filled day expecting the gentle tinkle of water running from the solar water pumps only to stop right at this place in silent anticipation, much weakened compared with what one's gotten accustomed to; a surefire way of knocking the balance in. . Solar water pump s offer an eco-friendly way to manage your water supply, but even these sustainable systems can encounter problems. When your solar pump stops working efficiently, it can disrupt your entire water management system and leave you searching for solutions. But, having the potential to run continuously into a pressure storage or tank versus running 24/7 to fill a lake or pond are two very different scenarios. In the first scenario, the pump. . Problem: If the PV pump does not run at all, it may be a motor problem or a complete loss of power. This issue not only disrupts water flow but also strains the pump. .