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).
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I'm using a 100-watt solar panel rated at 18 volts and connecting it to a buck converter to safely power a 12V 1100GPH pump. Without the buck converter, the panel voltage would eventually damage the pump, so this little device steps the voltage down and protects the.
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Typical applications are irrigation, community water supply, fish farming and agriculture. All of our drives have many solar-specific and pump control functions, such as built-in maximum power point tracking and dry run detection, as well as sensorless flow calculation.
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The HSPH1500LB inverter would be a good choice in this case. It has a power output of 1,500 watts and an input voltage range of 200 to 450 volts.
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