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A direct current motor is an electric motor that uses electrical energy to power machinery. When your appliances break down, it helps to know how the motor works so that you can troubleshoot problems before calling an electric motor repair technician. Below is a brief guide explaining some of the technical aspects of DC motor operation.

How It Works

Electric Motor RepairThere are several types of DC motors, but they all operate by converting electrical energy into mechanical energy. DC motors function by drawing electromagnetic power from a battery or power source which allows it to spin and generate energy. DC motors have six parts: an axle, rotor, commutator, brushes, and field magnets. The DC motor turns by magnetic force when an electric current passes through a coil and produces torque speed.

Types of DC Motors

DC motors are used in a wide range of applications across the industrial sector, from robotics and automobiles to small household devices. Because the applications are so varied, certain types of DC motors must be used for certain tasks. These include permanent magnet motors such as those found in low horsepower applications. Another type is the series DC motor, which creates a lot of torque but can't regulate speed, making them inappropriate for variable speed applications. Shunt DC motors create larger amounts of torque and allow for greater speed regulation and reverse controls.

Common Mechanical Problems

DC motors can experience problems that affect operation and require electrical motor repair. Sometimes, the motor becomes dislodged and is not mounted correctly, or is clogged with dust and needs to be cleaned. Overheating can also occur, which leads to trouble with the circuitry. If water breaches the motor, short-circuiting can cause the motor to burn out and require replacement.


When your appliances break down, and you need high-quality electric motor repair, trust the professionals at A-1 Electric Motor Service in Covington, KY. Their team of skilled technicians service household appliances and electronics, and offer a wide range of products including pool pumps, electric motor accessories, and HVAC electric motors. To find out more about their electric motor repair services and more, contact them today at (859) 291-1351 or online.

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