Hey everyone,
I've got the Panasonic SA-HT855 DVD home theatre sound system, bought it in 2007.
Sound like we all been going through the same thing with this error, like many of you I used to blow it and have the dust blow in my face too! lol, then I used to vacuum it and then it worked. after a while I had to open it up, take out the side fan and back fan and clean them up and then the error would go, a couple of months ago that fix no longer worked, had to replace the side fan which only cost £2 and it came from china, and then the back fan would no longer move no matter how much I cleaned it, I thought I would have to replace it but I didn't thanks to Bill's post, I peeled of the sticker and put a quick spray of WD40 it then started spinning freely, I now have a working system again.
Jinister, March 2015