4 Way Switch Testing actual markings on terminals contact test by multimeter continuity #electrician #relay #panelboard #control #power #technician #Switch #wiring #diy #electrical | Electricians Guide

To check for an open, you can take a circuit from one end to the other tie the two ends together to isolate them safely. Then go on the other end and use an ohmmeter to measure their continuity through the entire socket. Click the link below to see how you can check for a short using an ohmmeter or visit our YouTube channel for the entire video. https://www.youtube.com/watch?v=mc2MsMmMuCs&t=237s #hvac #compressor #shortcircuit #opencircuit #electrical | HVAC School