Electrical Troubleshooting

Electrical troubleshooting involves checking and resolving an electrical problem (such as when an electrical device stops working correctly). Common troubleshooting practices include checking if the power is on, the bulb has burnt out, or the breaker tripped.

2,086 Questions
DIY Projects
Electronics Engineering
Electrical Troubleshooting

How to calculare the needed capacitance of a start capacitor for a 12V 10A DC motor?

I want to use a 12V 15A switching power supply for a 12V 10A DC motor which has about 9A start current and 6A no load current, I also want to add a push button switch for on and off function to use it and by that, each time motor stops it’s gonna draw huge current from supply and I’m going to add some caps on to the curcuit; so my questions are: 1. will this high amount of start current damage the switching power supply with those repeatedly on and off times? 2. with numerous on and offs will the motor get damaged in long time or be hot more soon than normal using? 3. if we use cap to provide srarting current, what size and voltage? 4. where to add the switch? closer to supply or the motor? (in the case we use capacitor/s) thanks
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Electronics Engineering
Electrical Wiring
Electrical Troubleshooting

What is a bad connection in an electrical circuit called?

"A wiring fault" which - depending on the actual behavior of the bad connection - might also be described as "an intermittent fault", "a high resistance fault", or a combination of all three terms.

For example: "An intermittent, high resistance wiring fault".

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Home Appliances
Electrical Troubleshooting

What causes a crackling noise from an electric socket?

A crackling noise from a receptacle indicates an arc fault. It's the arc (electricity trying to jump across an air gap to return to its source) that you are hearing. There's most likely a loose connection on/in a receptacle. You should turn off the breaker for the circuit in question and consult a professional electrician. An arc fault can cause fire if uncorrected. ---- IF YOU'RE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator to insure the circuit is, in fact, de-energized.

91011
Electrical Wiring
Electrical Troubleshooting
Industrial Electricity and Electronics

What does an electric current continually seek a pathway to?

An electrical current continually seeks a pathway to ground.

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Units of Measure
Physics
Electrical Troubleshooting

What is the si unit of direction?

There is no SI unit of direction.

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Science
Electrical Wiring
Electrical Troubleshooting
Industrial Electricity and Electronics

The pathway taken by an electric current is called what?

Its circuit. But this is hard to marry with lightning, which is the path of an electric current.

373839
Electrical Troubleshooting

What would you do if you found out that the auxiliary apparatus to be installed is not according to the specification?

First you already have noticed that there is some type of problem that needs possible correction; that means you have a general knowledge of the apparatus and the specifications. I would check to assure that there aren't some amended spec's issued. Check with the original contractor/installer and give them your concerns. Notify your immediate supervisor to assure they are aware of your observations. Note: If there is a safety concern, expedite your efforts; warn operators if applicable.

234
Electrical Engineering
Electrical Troubleshooting
50 Hertz Industrial Electricity

380v motor on 415v?

Generally speaking this motor will run fine within +/- 10% of the motor rating. So plus 10% on the motor would be 418 volts. I think it will run fine

131415
Electrical Troubleshooting

What does L1 L2 and N mean in electrical terms?

L1 and L2 stand for "Line 1 and Line 2". These are the two incoming hot legs of a single phase, 220V electrical supply as is typical for residences.

The N stands for the neutral or grounded conductor. This is the white wire in a residential system.

Since L in electricity stands for inductance, L1 and L2 could also possibly be inductor 1 and inductor 2. And the N in electricity means Number of Turns (of the copper wire into a coil). Therefore, it could be about residential wiring or inductors.

131415
Electrical Troubleshooting

What is true about resistance?

It is measured in ohms. It is the opposition of movement of electric charge. It is related to voltage and current by Ohm's Law. Resistance is what builds up pressure and it can also generate heat as with friction.

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Electrical Engineering
Electrical Troubleshooting
Robotics

Convert peak to peak voltage to rms?

1.

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Car Batteries
Home Electricity
Electrical Troubleshooting

If two 2-volt batteries are connected in a series how many volts are available to the circuit?

The formula you are looking for is Vt = V1 + V2.

456
Speech Writing
Business Communication
Electrical Troubleshooting

What are the types and model of communication?

There are so many different types and models of communication. The most common include Aristotle's Model, Shannon-Weaver model, modern communication model and Thayer's model among others.

001
Electrical Troubleshooting
Haircuts, Hairdressing, and Hairstyles
Light Bulbs and Artificial Lighting

Why is the LED light on my GHD hair straighteners flickering?

There is either a short or loose wire. If there is a bulb, it could be going bad.

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Television and Video
Electrical Troubleshooting

Why is Magnavox TV not responding to Insignia converter box?

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Television and Video
Electrical Troubleshooting

Why does brand new TV black out but volume stays on?

Check video cable or video pin.

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Computer Hardware
Electrical Troubleshooting

What is an indication that an inadequate power supply is the source of an intermittent problem?

the power supply whines when you first turn on the system

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Computer Networking
Electrical Troubleshooting
Measuring Tools

What tool can you use to verify that a network port on a computer is good?

Normally if you are using a RJ 45 port / connector the LEDs indicate the connectivity and healthiness of the connection

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Electrical Troubleshooting

How do you Check for grounded electric motor?

Megger the body and the earth point. It should be zero

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Definitions
Computer Maintenance
Electrical Troubleshooting

What is the definition of computer system servicing?

Computer service means both hardware and software services. Hardware services mainly include cleaning of the system, ensuring its physically well maintained, its power sources, UPS etc intact. Software services may include updating the software versions, applications, renewing the licenses, renewing the patches, fixing antivirus applications, cleansing the data.

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Electronics Engineering
Electrical Troubleshooting

How can I fix this Mic gain pot inside President Grant 2 premium for FM deviation as broken what can I replace it with?

See if your library has a Howard W. Sams Photofacts folder for that unit to determine the correct part.

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Computer Printers
Electrical Troubleshooting

How do you get rid of Epson printer glitches?

You need to specify the exact problem to get the right answer. If you do not know the exact problem, call a service provider locally.

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Britain in WW2
Computer History
Electrical Troubleshooting

What are some of the Colossus computer problems with valves?

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Computer Maintenance
Electrical Troubleshooting
Laptops

How do I fix my laptop. Water got into it and I didn't know till a week later. It worked once then nothing. Only the f bar works?

You don't.

Take it to a qualified computer repair shop. They will inspect the machine and give you an estimate of the cost to troubleshoot and repair the machine.

Considering your description, the estimate is likely to be very high. It might actually be cheaper to buy an entirely new laptop instead of having this one repaired.

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Electrical Troubleshooting

What are the fault-finding techniques to be used if the equipment fails to operate correctly?

1. Pin point the problem - what is not happening as expected.

2. Read the error messages, error codes if any from the equipment.

3. Refer the manual for troubleshooting points follow the steps provided.

4. Talk to the expert and explain the problem and inform the observed behavior of the equipment.

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