How to Test a Well Pump Control Box Hunker Technicians should test a well pumpaposs control box before pulling a nonworking pump from the well. When the water tankaposs pressure switch detects low water pressure, its switch closes, which turns on the electricity to the control box. If youre looking for a new or replacement pump relay switch. 1-HP Pump Start Relay-570- The Home Depot Feb 0 20Rated out of by dmjohnsnxfrom works good This start relay works great for what itaposs designed to do, start the pump.
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How to check a pump start relay
After wiring this start relay after an onoff switch the relay will still click on, but the pump will not run unless the onoff switch is in the on position.