3 Wire Submersible Well Pump Troubleshooting

Testing a franklin electric qd quick disconnect box qd boxes are designed for use with 3 wire single phase submersible motors from.

3 wire submersible well pump troubleshooting. In this article we ll take a look at the 3 wire 240v single phase submersible pump system for drinking water applications typically set between 50 feet and 300 feet below grade. Step 4 visually inspect the control panel s wires wire connections relay and capacitor. There are some techniques that you can use to help solve the following problems with your pump. Replace all burnt.

Then start the pump. Normally there will be a splice connection at the top of the well between the submersible cable and the uf or thhn where the wire enters the home and between the pump motor and the submersible cable. Single phase submersible pump control box wiring diagram 3 wire submersible pump wiring diagram in submersible pump control box we use a capacitor a resit able thermal overload and dpst switch double pole single throw. The first could be that power is not being supplied to the pump.

Throttle pump output or reset pump to lower level. The wires heading to the well s pump motor connect to terminals with a start run and neutral function. Do not lower if sand may clog pump. Check the pump and motor.

Second check the overload protection by checking the circuit breakers and third check if the pressure switch is damaged. The wiring connection of submersible pump control box is very simple. The chart next to the wiring diagram gives the well pump s operating voltage. The pump is fed down a steel well casing that extends.

Shut off pump wait for well to recover. Check static and drawdown level from well head. This is a video of me showing you how i was able to track down and replace the control box for my well pump. Check system for leaks.

If the submersible well pump won t start there could be one of three things wrong. Low water level in well. Troubleshooting inside the box is made simple by the control components automatically disconnecting from the system when the lid is removed. Obviously the connection at the pump motor can t be checked unless the pump is pulled out of the well.

The pump won t start. If you don t have the box shown. If you have the proper tools you can do some troubleshooting yourself. Remove the screw at the bottom of the pump control cover and lift it off the box to disconnect it.

These are usually labeled s r and n the wires connected to the green screw ground the well system. Most pump controls are mounted in the house near the pressure tank but others are mounted inside the well pump itself and the fix requires a pro. Here is the complete guide step by step. Replace damaged pipes or repair leaks.

The pump controller houses a capacitor to help start the pump. Troubleshooting submersible well pumps 101. This type of submersible pump control box contains a capacitor relay and associated electronics.