How to Identify a Grounded Compressor Winding Using a Megohmmeter (Megger) Test
Modern HVAC systems rely heavily on compressors, and when a compressor fails, the cause is often electrical rather than mechanical. One of the most serious electrical faults is a grounded winding, which can lead to breaker trips, blown fuses, or complete system shutdown. Identifying this issue accurately is critical for safe and effective repair. A megohmmeter, commonly known as a megger, is...