That’s what I have is the 5-tray, though I bought it new. Had to replace the fan two years ago because it would slip on the shaft until it would hit the guard and make a lot of noise. Gluing it didn’t help, and pinning it and getting everything balanced would have been too much trouble.
Otherwise no problems, and I use it a lot.
Between the Excalibur dehydrator and the All American canner Mrs L and I manage to fill our larder with high quality foods suitable for long term storage just in case of hard times.
Good luck.
L