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HVAC/R Evacuation Quiz November 2, 2021, 1:40 pm
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Leak Detector Maintenance and Care
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Beware of "Ghost" Voltage
Disclaimer: “Ghost voltage” is a term used by techs to explain a phenomenon where they measure voltage they don't expect or when the voltage they see doesn't do the work they expect. More advanced techs know how to use the Lo-Z (low impedance) mode on their voltmeter if it has one to help eliminate this. […]Read more