You can fix it yourself...
I'm sure you'd be looking at $100 or more for parts and labor to get the cord winder replaced by an Aerus dealer. Fortunately, these plastic canisters are super easy to open up and work on so your best and cheapest option is to order a winder from eBay for about $30 or $40 and do the job yourself. You may even get lucky and find a used cord winder on the cheap as I did last spring when I rescued a Diplomat LX from beside a dumpster. The cord had been cut off and I found a second-hand cord winder on eBay for $17, including shipping. I replaced it myself and the machine, which essentially the same as yours, now works perfectly. The YouTube video linked below will show you exactly how to do it. The machine being repaired is an Epic 6500SR but the differences are negligible. One observation I'll make is the technician seems to struggle to keep the machine in one place as he's tapping the strips loose. He has it on its wheels and it wants to roll all over the bench. It may be a little easier if you turn it on its back or side to do that part. Doing it for the first time, you should pull out your phone and take a picture of the old winder in place, before you disconnect anything so you'll get the wires in the right spots when you put the new one in.
