Evening all

My Look Unique 2.1 went belly up on Thursday night (it's actually been a little "weak" for a while now and lockdown didn't help it).
Basically, I've had it to bits and the heat exchange coil on it's completely blocked mid coil in at least two places.

I've tried the old tricks of white vinegar and even shoving some sturdy resistance wire through it - but no joy. You're supposed to be able to blow through the damned thing when it's working right....I can't even get 44AWG wire through it!

I'm hunting for a replacement at the moment (hens teeth seem to be easier to find). Any other ideas for trying to unblock it though that people might have tried and tested?