Figure 40. Compressor Motor Circuit Testing - EarthLinked AVS-0030-A Quick Start Instructions

7. Motor Circuit Testing
Using a digital volt-ohmmeter (VOM), measure the resistance across the compressor
windings as shown in Figure 40. The power leads to the compressor must be
disconnected before taking an electrical measurement. A good rule of thumb for single
phase compressors is that start winding resistance (R ) is 3 to 5 times greater than run
2
winding resistance (R ).
1

Figure 40. Compressor Motor Circuit Testing

SD-410-QS (H) (06/15) Page 52