How to Check Compressor or PCB Fault in AC ? Learn Professional Testing Methods in AC Repairing Course at Multitech Institute ACRepairing course | AC Repairing institute | AC Repairing course in Delhi | AC PCB Board | Multitech Institute 🔹 Step 1: Check Output Voltage from PCB (Multimeter) 👉 Measure voltage on compressor output terminals. ✔ If no voltage = PCB Problem ✔ If voltage is present = Check compressor 🔹 Step 2: Compressor Coil Resistance (Multimeter) 👉 Measure resistance between R-S

To check a non-inverter compressor, first turn off the power. Use a multimeter to measure resistance across the three terminals (Common, Start, and Run) for continuity. Check for proper voltage supply. Listen for abnormal sounds during startup, and inspect for any visible signs of wear, overheating, or leaks #NonInverterAC #CompressorCheck #HVACTechnician #MultimeterTesting #ElectricalDiagnostics #ACRepair #HVACMaintenance #Troubleshooting #VoltageCheck #CompressorTesting #careskillsacademy #ACr