Just got a big warning that the cabin altitude is too high. I'm at FL330 right now. I can't get the cabin V/S to go back down it won't go any lower than 200fpm even when on manual. 

 

 

 

Edited February 24Feb 24 by dresoccer4

Hi, the issue is that your vent extraction is on manual override. This should be closed in flight, but the manual override opens it, which is why you cannot reduce your cabin altitude.

 

2 minutes ago, iniSteven said:

Hi, the issue is that your vent extraction is on manual override. This should be closed in flight, but the manual override opens it, which is why you cannot reduce your cabin altitude.

 

 

you solved it! i saw in the APU diagram that the vent was open and leaking air out but i had no clue how to close it. i must have hit that switch on the ground a while back but the cabin altitude didn't become a problem till i was up at cruise because of the leak. thanks!