What to do about missing holes and plugs

[Zed3]

I have a borrowed LG9200 with an automatic turner and a circulated air fan kit. In the setup instructions it tellls you to remove one of the red plugs and after lockdown remove both plugs. Well this unit does not have plugs which should not be a problem but one of the holes was blocked by the fan. So should I drill another hole or not worry about it? It's not my incubator to mess with. This is my first time and I want to do everything as right as possible.

Thanks for your help
Z

 

[dovecanyon]

The hole over the fan is the one that remains unplugged. You can't tell by looking at it, but it does provide ventilation. Just put some tape over the other hole and your'e good to go.