Just installed an Eco-worthy solar waterpump. Two 195 watt panels, 24 volt 250 watt pump. Worked as designed for three weeks, ran when getting direct sun, stopped when a cloud covered the sun. Now it won’t start unless I jump start the pump with a 12 volt battery. Once jump started it runs fine. There is no battery or controller in the system because descriptions for the kit said it wasn’t needed. Is there a fix for the no start problem or do I have a bad pump. Eco-worthy doesn’t respond to my emails.