Electric Motor Repairs - Troubleshooting Electric Motor Problems

In general, an electric motor is a device that produces mechanical energy by using electric energy. It is used in a large number of applications, either for home appliances or large commercial units. In fact, any device that involves mechanical movement such as fans, pumps, computers and wastewater treatment plants make the use of electric motors. Previously before the intervention of alternative current (AC), direct current (DC) from portable batteries was used as the source for electricity. In recent times, both DC and AC are used as per the configuration of the machinery.

Understanding the electric motor basics and electric motor parts will help in easy diagnosis of the problems associated with the electrical unit. The main parts of this electrical systems are rotor, field magnet, commutator, brushes, axle and power supply, either AC or DC. The working principle of an electric motor is to create rotational motion with the help of electromagnetism. Let's discuss in brief about electric motor repairs and ways for troubleshooting electric motor problems.

Repairing and Troubleshooting Electric Motor Problems

Prior to starting electric motor repairs, make sure to turn off the main power supply in order to prevent electrical shock. It is also to be borne in mind that electric motors are dangerous equipment. If you are not confident about handling electrical appliances, it is always advisable to contact a professional repairer for electric motor troubleshooting. Also, make sure you wear safety glasses before handling the electric motor. Following are some of the common electric motor problems and ways on how to troubleshoot them:

Motor Not Starting: One of the most common electric motor problems is failure of the motor to start. This problem may be caused due to tripped fuse and / or failure of the power supply. In order to troubleshoot this problem, first check the power supply. If the power supply is working, then allow the motor to cool down and clean the parts. You can use air compressor for cleaning the motor. In case it does not start even after cleaning and resetting, replace the motor.

Overheating of Motor: Overheating of the electric motor may be due to inadequate ventilation or poor cooling air supply. For fixing this problem, check the fan blades for any dust and dirt accumulation. If the fan system is working properly, the problem of a noisy motor is due to a faulty motor. Consult a professional to examine the motor capacity and if necessary, replace it.

Noisy and Vibrating Electric Motor: Excessive noise is an indication of motor problems. A noisy electric motor is usually associated with vibration problem, which in turn results in damages to the windings and bearings. Noise generation is often caused due to faulty alignment of the motor shaft or an imbalance in the electric or mechanical systems. For relieving this problem, check for the damaged bearings, loose mounting and shaft alignment.

Regular servicing of the electric motor helps in minimizing the problems. You can give the motor to the company for routine servicing or service it on your own by following the manufacturer's guidelines. Some of the basic maintenance tips for electric motors include cleaning dust and dirt, lubricating the bearings and insulating windings whenever necessary.