Rapido Clogging in enclosure

Hi All,

I have an enclosure on my second printer and it also uses a Rapido UHF. I print PETG @240 and bed at 75deg.
I'm getting constant clogs lately and can hardly get 2hrs printing. I've tried opening the door but it still clogs just lasts somewhat longer.
Will drilling the Heartbreak even help? or am I missing something?

Thanks