Within your air conditioner itself, there are many electrical parts that bring power to different parts of the unit. What are the best tips for electrical troubleshooting. The first step of electrical troubleshooting is to identify the actual problem. It is a broad overview of what has proven to be a simple, but effective, method of investigating an electrical problem. These professions include auto mechanics, appliance repair, residential wiring, manufacturing technology, and many more. Sixstep troubleshooting plan body electrical diagnosis course l652 5 this is the first step in any diagnostic process. Upon completion of wiring around your home you will exhibit one of the following at your local or county fair. Display board, poster, equipment wiring board, or written report in one of the following areas.
Pdf information presentation and troubleshooting in electrical. These are some of the common parts and problems that lead to electrical failure. The following is a short discussion concerning basic electrical troubleshooting. International journal of science education, 26, 239256. Basic troubleshooting techniques freedom high school systems management. Electricity connections are fairly simple to understand and can be easily diagnosed. The automotive electrical system contains five electrical circuits. This methodology is also very useful in technical troubleshooting, since troubleshooting is fundamentally a determination of cause for an observed effect. Basic circuit troubleshooting basic electricity pdf version. Some tools are specialized instruments designed to measure various behaviours of specific equipment. Basic electrical troubleshooting introduction youtube.
Critique this technicians troubleshooting job, noting any errors or unnecessary steps. Electrical power will go out and come back on, problems with the main electrical panel, checking individual electrical circuits. Question 3 at a construction site, workers have used power. Air conditioner troubleshooting good ac repair tips 1 how to. He would rather take on the task of troubleshooting electrical wiring then he would construction jobs, he was the best troubleshooter there was. The electrical systems on equipment used by the navy are designed to perform a variety of functions.
Traister pdf designed for quick reference in any work site, that the electricians troubleshooting and testing pocket guideempowers electricians utilizing mobile meters to check, maintain, and troubleshoot all types of electric systems and equipment. The electrical troubleshooting online electrical training course covers use of schematic diagrams, determining sequence of operation, and use of building diagrams and singleline diagrams. This troubleshooting procedure is based on the assumption that supply power and ground to the pmci are functioning properly. Use this seven step process when presented with a complex problem.
For proper air conditioner troubleshooting, you need to understand some basics of air conditioners. Paccar mx epa20 diagnostic manual p3757 to p3873 wk32. Electrical power and control signals must be delivered to electrical devices reliably and safely. Online electrical troubleshooting training course tpc. This program provides students with the essential information needed to grasp the concepts of electrical troubleshooting and repair. If it is not possible to deenergize the electrical panel or equipment, proper safety procedures must be in place following nfpa 70e. Read the following description of an experienced troubleshooter diagnosing an automotive electrical problem, and match the troubleshooters steps to those five steps previously described. A handy guide to troubleshooting common car electrical. The digital voltmeter is the best basic tool for electrical troubleshooting, because its calibrated and exact. Download electricians troubleshooting and testing pocket.
This includes basic refrigeration, electricity, electrical components and how electromechanical controls work. Fixing electrical problems is a skill that every car owner must possess. Youll read fullsystem voltage in a highresistance circuit unless the circuit is tested under load. This conclusively tells us that the problems must lie between tb21 and tb23. Electrical troubleshooting circuit breaker trips frequently when a properly working circuit breaker trips frequently and there are no malfunctioning loads on the circuit, it means the circuit is overloaded. This article shares tips and tricks for doing so appropriately. Others, like the multimeter, are general and can be used on most electrical equipment. Mcemax manufactured by pdma corporation being used to troubleshoot a high voltage motor. Troubleshooting electrical equipment is a dangerous and complex process. Includes maintenance procedures for control circuits and combination starters. To expertly troubleshoot electrical equipment, problems must be solved by replacing only defective equipment or components in the least amount of time. Chapter 8 automotive electrical circuits and wiring.
From step 2 we already know there is good continuity from tb21 back to the power supply as well. First things first is an autotruck electrical system troubleshooting flip chart that focuses attention on possible problems in the primary electrical system, consisting of battery condition, major ground connections and generator alternator charging system performance. Wear appropriate protective clothing and equipment. Electrical troubleshooting 1 before using a voltmeter on electrical components, do the following. Chapter 8 automotive electrical circuits and wiring topics 1. For more information, refer to the holt cat electrical safety policy and procedures or your companys safety policy. Sixstep troubleshooting plan body electrical diagnosis course l652 3 you have now covered all of the tools used when diagnosing electrical problems. Chances are, you wont be an expert in repairing these devices, but you can take some practical steps to solve problems and help get your systems operational again in a timely. Electrical troubleshooting in seven steps gather the information understand the malfunction identify which parameters need to be evaluated identify the source of the problem correctrepair the component verify the repair perform root cause analysis 1. Electrical safety in the workplace 2 course goal the aim of this program is to provide comprehensive onsite training to high risk workers i. The first step of any electrical system troubleshooting exercise involves gathering as much information about the problem as possible. We can apply this to computer networks, electrical and electronic circuits, or business processes. Were talking about linetoground faults that may damage equipment. Disconnecting the pmci connectors during the troubleshooting process will result in multiple errors.
When you are handed a repair order with a customers complaint on it, there are three things. Use insulated gloves, tools, blankets, and barriers if required. Electrical panels and equipment needs to be deenergized prior to being serviced following proper lockouttag out procedures, whenever possible. It presents a logical, stepbystep approach for troubleshooting system faults. Focuses on specific maintenance tasks, breakdown maintenance, and planned maintenance. Troubleshooting compressor electrical motor faults a clamp meter is a great tool for troubleshooting electrical motor faults, especially meters designed to accurately measure both ac voltage and ac current. Jul 26, 2016 some ac electrical problems can arise solely from broken electrical parts and faults in the wiring that services it. All three steps can be applied to any electrical problem. Instead of immediately diving in and haphazardly attempting anything to get the equipment running, first step back and determine how is the equipment supposed to operate, what technical documentation is. Seven step troubleshooting wiki odesie by tech transfer. Basic circuit troubleshooting worksheet basic electricity. Electrical safety and electrical work procedure prepared. Troubleshooting of an electronic circuit is a process of having a special outlook on components that comes out with remedies to repair it.
This article presents an overview of a simple, but effective, method of investigating an electrical problem. Basic troubleshooting strategies worksheet basic electricity. The following batteryswitchlamp circuit has a problem. A laptop computer with plc programming, communication, and operating programs are a. Troubleshoot electrical wiring problems asktheelectrician. An electrician is troubleshooting a faulty light circuit, where the power source and light bulb are far removed from one another. Six step troubleshooting plan body electrical diagnosis course l652 5 this is the first step in any diagnostic process.
Electricity connections are fairly simple to understand and. Mar 03, 2020 there are three steps to electrical troubleshooting. Sep 28, 2010 the digital voltmeter is the best basic tool for electrical troubleshooting, because its calibrated and exact. Fortunately, electrical circuit troubleshooting is an activity that works well for small groups of students to engage in as well as individual students. Basic electrical troubleshooting for everyone pdf free download. Troubleshooting in the field motor testing motor controller programmable logic controllers plc within the industrial troubleshooting realm today, electrical troubleshooting also requires great computer skills. Starting with the whole circuit as the problem area, take each noted observation and ask. Most common steps for electrical troubleshooting for power problems.
But remember, the digital voltmeter cant detect a highresistance fault if the circuit is open. Having an effective troubleshooting plan and following it can help obtain this feeling of satisfaction. Go through this quick primer on solving electrical problems in your automobile, to get an overview of the procedure. Aug 03, 2010 this feature is not available right now. Electrical troubleshooting skills are needed in a variety of professions. May 2020 page 5 of 24 this document is uncontrolled when printed. For more information, refer to the holt cat electrical safety. As an industrial electrician, youll encounter many complex electrical circuits and drives that will break down as they age. Outlines troubleshooting techniques and aids, using schematics and symbols.
One of the most important factors in doing this, is the approach used. In the event that you follow the above steps and your ac comes back on, the circuit breaker could potentially trip again. These meters allow current to be measured without breaking into the electrical circuit. Basic troubleshooting strategies basic electricity pdf version. Covers working with others, aids in communication, and trade responsibilities.
This simple troubleshooting technique is applicable to a wide variety of electrical, electronic. There are three steps to electrical troubleshooting. You must have a thorough knowledge of the engine and know its normal operating conditions. Within the industrial troubleshooting realm today, electrical troubleshooting also requires great computer skills. Explains troubleshooting practices on dc and ac motors, identifying unmarked leads on threephase. Troubleshooting in the field motor testing motor controller programmable logic controllers plc. How to troubleshoot like an expert a systematic approach.
Ac voltage source tb1 tb2 tb5 tb4 tb6 tb3 light as you can see in the diagram, there are several terminal blocks tb through which electrical power is routed to the light bulb. Explain the steps you would take to troubleshoot this problem. Electrical troubleshooting in seven steps efficient plant. Apr 24, 2010 troubleshooting electric circuits department of defense 1968 pin 27867 shows how to locate and repair shorted, grounded and open circuits. How to troubleshoot electrical systems construction. Troubleshooting an open circuit faults in the control circuit. A laptop computer with plc programming, communication, and operating. While the electrical technician went to get the equipment service manual, the service representative opened the panel cover of the voltage. How to troubleshoot electrical systems construction equipment. If your circuit breaker keeps resetting, leave it off. First things first flip charts veejer enterprises, inc. When we use the six steps properly, our troubleshooting can be faster and more efficient than it would be if we just jump right in. A handy guide to troubleshooting common car electrical problems. Troubleshooting compressors and the hvacr refrigeration.
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