There's no suction. What do I do?

1. Confirm that your posts are set correctly. When looking at the pump so that the screen is directly in front of you, ensure that the posts are both set to green if double pumping. If you're single pumping, make sure that only the post on the side that you're actively pumping into is green. The other side should be red. To turn the posts, push down first (like you'd do to open a medicine bottle).
2. Ensure that the outer shield is well connected to the silicone inner part of the breast shield.
3. Press down firmly on the bottle connector.
4. Press down firmly on the breast shield connector.

Please remember that suction can take 30-60 seconds to build.