If you look in there down the side you may see it. Make sure it's dry and the wires are still connected etc. Might have to take some plastic off to get to the parts to have a really good look but its worth a try.
I am pretty sure it wants to see it lock for AC too, when I charge AC I also hear it slide up and down. Maybe there is another switch for DC that got water logged or something amiss with it.
Are you sure the DC is down correctly, there are not any screws or something in the lip way that may be keeping the charging head from seating fully. I mean give this thing a good hard push while wiggling DOWN on it, press wiggle and ensure it's FLAT. The DC charge cables are heavy and it's very easy to have the thing cocked just a tiny bit that you don't notice it, but it's enough to not engage that last switch and throw a fault when trying to charge.
This is one thing that pisses me off with charging, is when it does fail it won't really tell you WHY? Was it a switch fail, insulation fail, comms, WHAT???
Also when it fails, I find that it's best to just turn the bike off and then back on to try to reinitiate, making sure you unplugged it first, that way everything is starting from scratch, and nothing is left lingering in any memories, both the bike OR the charger.
so plug
charge
it fails.
fine., F you
Unplug if it lets you, if it don't then cycle power to unlock fully.
power off bike, unplug.
replug, make sure it's TIGHT.,
then repower up the bike
let the bike go thru it's boot sequence and be at the .. ok im good to go screen.
THEN re initialize a charge requst. you should see it doing it's config thing, and hopefully in about 5 to 20 seconds it starts charging.
pay attention to specifically what error it gives and hopefully we can figure something out if it don't try again.
Aaron