The Dyson V6 Fluffy has a similar design and the digital motor V6 technology but comes with a different type of cleaner head, one that has a full-width soft nylon roller with carbon fibre filaments.
This picks up large debris, while the carbon fibre filaments pick up fine dust. It "sucks up as much dust as even a corded vacuum," claims Dyson.
One of the main differences between the Fluffy and the top-of-the-line Absolute is that it doesn't have the post-motor filtration as the more expensive model, but will still remove pet hair and ground in-dirt.
easy fix, unplug the machine sit in front of it. put your thumb on the on/off button and push down and slip your thumb off of it as fast as you can so it pops real loud. Do this ten times and then plug back in and see if it works. ( this came from talking with Dyson people) Hope it works for you. They said this will reset the machine. also acts as a warning that your filters most likely need cleaned.
You sound pretty savvy in your troubleshooting. Take a look at this video. You may have a split in one of your three suction hoses. I tried to find a video for a DC24 but to no avail. These two models are pretty close and this video should help you out.