internal fan 200 classic

[cjlitteral]

I have a 200 classic mounted to wall. I have had it for at least 5-6 years. the fans are buzzing and wondering how to tell if I have model with fan access in the back (without having to remove it) or if have to go through front chassis?

[ClassicCrazy]

go to the very first forum page and search for classic fan replacement ( or something like that ). The search won't work right on any other page.
I haven't ever opened up a classic so can't give any advice but there are lots of posts about it .
https://midniteftp.com/forum/index.php

Larry

[ClassicCrazy]

also look here for some info on Classic Fans
https://www.midnitesolar.com/faqList.php?faqCat_ID=57&faqCatName=Classic%20Charge%20Controller&parent_ID=2&subCatName=Troubleshooting