when i did my rebuild i soaked the intercooler and radiator with simple green and used a hose nozzle to clean out the fins individually. took a while and i was soaked but it was fun and it got perfectly cleared out. no fast way of doing it though but will help temps on everything!
Dave how do you deal with condensation in winter? Do you use a dehumidifier system?
I got a lemon when new. Surprising to find so many problems that steming from lack of quality control. I once thought I got everything fixed ,but more things showed up, like a structural failure from crushing under it's own weight. I never gave up believing eventually I'd have a good unit though, so I kept going since my work was better than the dealer.
That was a tough one getting in and out of a storage basement for 2 days to properly structure failing basement sides.