What Are the Functions of the 1 to 5 Wires on Common Brushless Diaphragm Air Pumps?

Staring at a brushless diaphragm air pump with its assortment of 2, 3, 4, or even 5 wires can be daunting. If you’re wondering what each wire does, you’re not alone. Getting it wrong can mean a pump that doesn’t work, or worse. Brushless diaphragm air pump wires primarily handle Power (Positive VCC, Negative GND). […]