@pioneerhvaccontrols: Check ALL your pressure switches in one test ⚡ Power off, pull the plug, meter on continuity across it. Beep = every pressure switch is closed. Open line = one is open, so find out why. Full video 👉 link in bio https://youtu.be/lTDq_ai_KaE #hvac #hvactech #pressureswitch #hvaclife #bluecollar #tradeschool #hvactips