crwdns2934241:0crwdne2934241:0 diydude

crwdns2934249:0crwdne2934249:0:

Had the same issue; in my case there were no visible tabs to push back. After tinkering and pensively forcing it open, I realized that the tabs were hidden internally. Out comes the screwdriver, and after popping the 3 tabs on the vent side, the back vent is one whole tab that holds the 2 pieces together. That takes a while to open.

Hope it helps.

crwdns2915684:0crwdne2915684:0:

open