Remove the cover on the back of the fridge and look at the compressor start device (on the left side of the compressor).
If it looks like a white cube - remove it and shake it. If it makes a rustling sound then the start device is bad.
Whirlpool redesign this part and it looks different but it comes with the complete installation instructions.
- The part number for the star device kit is
AP3873993
Here are the break down diagrams for the Whirlpool refrigerator
Model ED25PEXHT02
Gene.