exhaust fan vent on outside of trailer

my vent cover on the outside of my mallard m29 will not open I have 2 tabs that I have pushed, pulled, AND tried all directions to get my stove top exhaust vent open. cant get it open and afraid to break the vent cover on the outside. please help. thanks.
 

mlpeloquin

Well-known member
The one on my Big Horn was really hard to open as well. It will open and once it does it gets easier each time. You have to push up on the tabs and pull out at the same time. The thing is that while pushing up hard you have a tendency to push in not pull out.
 
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