Industrial Stores carries a wide array of Electronic Control Modules (ECM) for control motors. The ECM is a microprocessor control unit that usually fits in the end of a motor to control speed and flow in most variable speed motors. The ECM, sometimes also called an End Bell module is programmable and is found on most draft, blower, and condenser motors. We have brands such as Goodman, Amana, York, Rheem, Aaon, Carrier, Heil Quaker and many more.