MGCSA Hole Notes June 2016

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ally having high resistance. That is, measurements may be ‘weird’ and not all shorts have low resistant con- almost ‘unfathomable.’ A situation nections. such as this can really challenge your troubleshooting abilities. Sometimes a short may have a higher resistance than one ohm. The best way to trouble shoot a Additionally, you may have a situa- complicated faulty multivalve circuit tion where only 2A operates but not is to isolate the circuit’s components valves 2B or 2C. Basically, there as best you can and troubleshoot can be quite a few variations of what each of these isolated components can happen with shorts in multivalve separately. circuits. So, overall, the circuit may operate entirely, partially, or not For example: as shown in Figat all. The circuit ohms resistance ure “C”, you could isolate the vari

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