Sorry for my late reply, but no - i did not get any information that gives me more clarity if an EU charger is facing the same issue and fuse replacement is as simple as shown in this thread. Though i am one of the few dutch private owners of a model s, so most others will just pay the 2500-3000euro for the charger when it fails. I am not willing to do this before checking the fuse. The EU charger looks different than the US version, and it is based on 3-phase charging, so i can imagine that internals are different. I am planning to open up the charger soon, so far i am charging at 66% of charging speed at 2 phases, which is good enough for home charging. Though i miss the ability to use the single phase 220V socket, which is not working since the problem occured. Apparently the blown fuse is from the phase connected to the single-phase household plug adapter, which i rarely used at hotels to charge.
Replying to old post, but do you have more information now?
I have a 2013 P85+, EU model with twin chargers. Single phase charging is working fine, but three phase charging is using only two phases!
I have so far only tried the included UMC, so it's entirely possible the problem is there and not the car charger.
If fixing is too expensive or difficult, I might keep it as is because even two phase charging is reasonably fast..
In your case, it might be a good idea to swap phase wires around inside the connector that plugs into the car? That should fix the single phase charging for you.