I opened it up and used vacuum with light brush to clean, did not pull the hashboards out but Ill do that one day need to learn it.

I did a few more improvements on my ventilation and it looks to be running better again.
etc Taped my seals and gaps, used clamps instead of zip ties, added ducting support.

Interesting my fans speeds are now much lower, the sound is very good, like a loud bedroom fan.

SS below
https://imgur.com/a/hygPtSv