Help!

I've a problem with my Zanussi washer dryer (Model WDA 1255 W) leaking
but only when drying.

Trickle of clean water from under right hand side front of machine,
roughly where filter access is. Definitely not filter leaking though
as washing cycles are fine. I've not had chance to investigate machine
further, not found anything on internet about this problem.

Anyone out there have any pointers. Not familiar with this machine as
my previous one (Whirlpool) was dead easy to take apart and fettle,
this one has been going for a few years without any attention
required. Seems a very different construction. Any ideas on
dismantling a Zanussi?

Thanks

Jez

PS I'm aware washer dryers are the spawn of the devil but have a small
kitchen.