Fujitsu Compressor Test Instructions:

1. Follow the steps carefully.

2. Test for a grounded compressor:

   • Measure resistance (ohms) from each winding (U, V, W) to ground.

   • The reading should be at least 20 megaohms or OL (open line).

   • If the reading is less than 20 megaohms, the compressor is grounded and needs replacement.

3. Test winding-to-winding resistance:

   • Measure resistance between windings: U-V, V-W, and W-V.

   • The reading should be around 1 ohm and be same same value +/- 0.1 ohms.

If readings are outside these ranges, further troubleshooting may be needed.

Here is a video detailing this test sequence.