Product review (5 stars): Easy to install
If the start switch on your compactor is broken, and this is the correct part for your model, go for it. Very easy install on my Whirlpool GX900QPLB0

1. Unplug compactor, or turn off at breaker but make sure power is OFF
2. Open compactor drawer
3. Remove 2 screws under the control panel
4. Lift control panel up slightly, then off
5. Mark the cables so you know where they reattach on new switch, or do what I did and take a pic with your phone
6. Remove the cables from old switch
7. Attach to new switch
8. Slide control panel back into place
9. Replace two screws under control panel
10. Plug compactor in, or turn on breaker

That's it!