Lexmark cx820 error 179.82A

[chemicalx50]

That is exactly my situation right now.. also note I'm not the original tech that started the repair... i think if he had replaced the correct fan (hvps fan) I wouldn't be having this issue but I was told the hvps was replace which actually wasnt lol I ordered the fan so will keep you posted

I'll also reinstall the original controller board.

[dalewb74]

when replacing the control panel you should do that alone, without replacing anything else. then boot to ready screen to see if that resolves the issue. if you replace the control panel at the same time as another specific part then you can brick the copier. the service manual explains the proper steps. pressing 3 and 6 is not used for uploading firmware no matter what state the copier is in.