It's a 12 speed, but all speeds run on the same, fairly high, speed. I just bought it used and was wondering if this suggested a possible fix, or a permanent condition?

[B]As I was typing my question, I investigated a little more and found the solution. I thought I'd post this nevertheless so that other can benefit from my findings.[/B] Hi, I have a central vacuum and this week I noticed that I couldn't get it to work anymore. After some testing, I discovered that: 1- The central unit works fine 2- If I use another hose it works fine 3- With the current (non-working)hose, if I pull it out a bit and twist it, it works correctly. I also discovered that there are 2 metal contacts at the top of the hole in the wall, and shorting those 2 contacts with a paper-clip will start the vacuum. I can conclude that my hose is no longer shorting those 2 pins. Using a multi-meter to test continuity I was able to determine that the on-off switch on the hose wasn't shorting the 2 metal plates at the end of the hose. I opened the handle where the on/off switch is and was able to confirm that the on-off switch was working properly. I then opened the other end (the one that goes in the wall and found the issue: One of the 2 wires wasn't connected to the metal plate anymore. Unfortunately I didn't take a picture of the hose when the problematic end was opened, but here is a photo of how it looks at the other end and it was that metal "clip" that was separated from the wire. [ATTACH]103629[/ATTACH]