A-6 Troubleshooting Flashcards
What is troubleshooting?
A systematic approach through the network to isolate the problem.
Why should you try to find the original reason for a fault?
With out resolving why the issue occurred in the first place the problem will keep occurring. (So you don’t have to go back.)
What should a successful troubleshooter have a good understanding of?
How the system is laid out and operates.
Three useful steps to follow to help troubleshoot more effectively.
Ask for more information.
Understand what the issue is.
What tools do I need or where do I need to be to test the theory.
Three questions you should ask to better understand the problem.
How does it normally work?
What is acting differently?
What would need to change to cause these results?
Four questions to ask your self when evaluating a problem?
What testing tools do I need?
where will allow for testing?
Does the circuit need to be on or off?
What should the readings be?
Half-splitting refers to?
Identifying the path of the circuit and locating the halfway point.
Four natural senses you would use when troubleshooting equipment.
Sight
Hearing,
Smell,
Touch
Four categories that most electrical circuit problems fall into.
Shorts
Grounds
High resistances
Opens
Three troubleshooting tools that could help you be more successful in troubleshooting a malfunctioning piece of equipment.
Manuals
Schematic Diagrams
Wiring Diagrams
What other information is usually available in the manual(s).
Parts information, Contact information, Common issues and fixes, Where to go for parts.
When troubleshooting specific equipment,what useful information does the manual provide?
Test points, Suggested fault points, Common problems
Troubleshooting a piece of electronic equipment that has adjustments, what component will most likely have failed?
Push Button,
Limit switch,
Sensor
Most modern electronic controllers have which type of indication to help a troubleshooter?
LED lights on switchboards.
If a fuse blows on an electronic device such as a variable-speed drive, what should you check?
Solid state components for shortages.
Why should you document the fault and remedy clearly?
To note what work was competed. Parts that were ordered, and how to fix it if it happens again.
What do Schematic Diagrams explain?
The operation of electrical circuits.
What do Wiring Diagrams show?
The physical and electrical relationship of devices.
Three items that can be downloaded and printed from a manufacturer’s website.
Replacement parts lists.
Phone numbers to contact
Address of manufacturer
Replacement documents
What does a well designed troubleshooting flow chart show?
How the system is set up and runs.
Enables you to find faults and irregularities in the current network.
Door bell system doesn’t work. What is the first step?
Check for 16 volt power.
Three items the electric furnace troubleshooting chart shows.
Problem, Possible cause, Solution
Three possible causes for an electric furnace not running.
No power, Switch is off, Motor overload tripped.
Is momentarily touching the two wires together an acceptable practice?
Yes.
