I recommend the 12 sheet cross cut from sams. The price hasnt increased in the last 2 years despite the inflation of everything else. It lasts a year if you beat the heck out of it like I do. I have two tops mounted on a 39gal wheeled trash can. We shred everything and it goes right into the garden.
Mine is doing the same thing and SOUNDS just like yours. There's a buzz and others I've heard are much quieter. I'm trying a new blower. 56 dollars. If we have bad bearings (the buzz sound) the fan can't run as fast as it needs to.
That big shredder seems to be handling the cardboard well. You need a few of those to shred all that cardboard. Sounds like you have a good radio station on too. Love the tunes. What's the station?
Thanks for sharing the video. I have had exactly the same issue with the water heater, but after a few weeks it auto recovered, but still the exhaust may need some cleaning.
From the Rinnai tankless water heater manual: Code "10" displayed on the led control panel means "Air supply or exhaust blockage". Have those pipes cleaned as well as the internal air paths inside the unit and HAVE A SCREEN INSTALLED ON BOTH PIPES EXITS so nothing can get in there and clog things up.
Look up--> Rinnia Water Heater stops heating - diagnostic code 10 on RL94i.. its probably dust or bugs in the squirrel cage of the fan.. if you've had it a while then it just needs to be cleaned.. or it's an exaust/ intake blockage in the pipe.. on RU-vid