This Fantech FR100 radon mitigation pump started to make a low grinding/whining sound. This video shows how to rebuild it and replace the bearings to make it as good as new. Using the below affiliate links help support my channel so I can make more videos like this in the future!

Bearings: https://amzn.to/3w8uEQo
Nicer Retaining Ring Pliers ($38): https://amzn.to/3OtwBgW
Cheaper Retaining Ring Pliers ($12): https://amzn.to/3ubqbfs
Silicone Sealant: https://amzn.to/3HIVwJl

0:00 Intro
0:28 Disassembly
1:45 Removing old bearings
2:41 Installing new bearings
3:17 Reassembly
4:20 Before/After sound
4:40 Outro