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Frigidaire model flsg72gcs9. The dryer would not start so I took the front panel off and saw that the drum glide felts were damaged and coming loose. I replaced the top and bottom felts. I stretched the bottom felt too much when installing and snipped off about a 1/4” extra. After reinstalling, the dry went for about 15 minutes before a low rumbling could be heard which got louder as it went on. I took the machine apart and noticed the pulley wheel had a crack so I ordered a new one along with a new belt. Replaced them and got the same result. (the belt leaves shaving or rubber dust underneath the pulley) I ordered a new drum bearing even though the old one looked good and replaced it. Same result. At this point the motor would not turn without assistance so I thought it was bad bearings and installed a new motor (and blower housing it comes with). Same rumbling, maybe even worse. I noticed when I pushed on the back of the dryer the rumbling would stop and noticed on one of the corners it was missing a screw. I had to drill through the hole to get to where it secures the intake to the back round plate. Still continued to rumble. The rumbling did not start until after I installed the new felts. They have had to be replaced a few times over the years. The left side of the felt has rubbing marks because the drum leans to one side creating a gap on one side and rubbing against the other. But I think it has always done this. I have leveled the dryer but the drum still leans that way. Whenever I reinstall the drum it runs fine for 15 min to 45 min The only thing I have not replaced is the blower fan but the dryer runs fine with the belt off and starts rumbling as soon as I put the belt back on. Any ideas? Link to noise https://www.youtube.com/watch?v=UBEpPDqO…
First make sure it isn’t wedged against the wall. Also check the dryer legs and the area directly beneath the machine itself. A defective component could be definitely a problem that you’ll want to address, make sure follow all these guides to troubleshoot your machine. Dryer with loud rumbling noise every 20 to 40 seconds, lasting 5 sec https://blog.puls.com/dryer-is-making-no… Good luck!
