Troubleshooting Electrical Control Circuits (A8010)

Learn basic procedure for troubleshooting electrical control circuits.

Prerequisites

This lesson is designed for participants familiar with AC and DC theory, electrical safety, electrical schematics, and the proper use of electrical test instruments. An understanding of the operation of control circuits and components, such as switches, relays, fuses, circuit breakers, motor starters, contactors, and control transformers is also recommended.

Description

This lesson presents a basic procedure for troubleshooting electrical control circuits. The lesson shows and explains how to gather information about the symptoms, how to verify the symptoms, and how to use the schematic diagram to locate the cause of the problem. The lesson also shows how to perform continuity checks on the circuit and replace any defective components.

Objectives

Troubleshooting provides users with the knowledge to do the following:
Develop a logical and systematic strategy for troubleshooting a circuit. Obtain all necessary troubleshooting information. Verify problem symptoms by performing electrical and/or mechanical operational checks. Isolate the problem. Replace all defective parts. Check the operation of replacement parts.