What does a well pump control box do?

A control box helps start and run many submersible well pumps. It can include electrical components such as a capacitor and relay.

What are signs of a bad well pump control box?

Possible signs include no water, humming, a pump that will not start, tripped breakers, burnt smell, or repeated starting problems.

Control box and capacitor symptoms

A failed control box, capacitor, relay, pressure switch, or wiring issue can keep a submersible well pump from starting or building water pressure.

Humming can point to start components, controls, wiring, or motor issues that need diagnosis.

Do not keep running the system if electrical components smell burnt or appear overheated.

If the pump is in the well, mention whether there is a visible control box near the pressure tank.