The white wire is neutral. It connects to the silver screw. The bare copper or green wire is ground—connect it to the green screw. Never, ever swap them. That’s like putting ketchup on ice cream—just wrong.
Black or red wires are hot. They carry the juice. On a 120V system, you’ll have one hot wire. On a 240V pump, you’ll have two hots (red and black). Don’t mix them up unless you enjoy buying new pumps.
Funny detail: If your pump runs backward (sucking water instead of pushing it), you probably swapped the two hot wires. Flip them. Problem solved. Your pool doesn’t care about polarity—it just wants to flow.
Setting the Clock Face
Now the clock. Turn the dial until the current time lines up with the arrow. Most timers have a little “on” tripper and a little “off” tripper. Push them to the times you want.
How to Wire a Pool Timer | Detailed Explanation (2026)
Example: Set “on” for 8 AM. Set “off” for 6 PM. Your pool will laugh at the sun while you do nothing. It’s like hiring a lifeguard who never needs a paycheck.
Weird truth: If you live where daylight savings time exists, you have to adjust the clock twice a year. Your pool won’t know it’s spring. It’s fine—you’re the time wizard.
