radon system repair 5

https://astro-wiki.win/index.php/When_Your_Radon_Fan_Is_Not_Working:_A_Practical_Guide_to_Troubleshooting_and_Repair

Had to call in a specialist when our radon mitigation system started acting up; the fan was making this weird grinding noise and the monitor readings were jumping all over the place. The technician replaced the inline fan and sealed a few cracks in the basement slab, and now the levels are back down to safe. It's not something you want to DIY since improper repair can actually increase exposure.