retractable screen door won't retract

Question:
We have a retractable screen door that won't retract all the way without pushing it in. Do you know what we can do to fix it so that it will retract on its own like it did when it was first installed?

thank you,
Deanna

Answer:
It's probably that either the top or the bottom track has moved and the two are no longer exactly parallel. I would guess that the lower track is the most likely culprit. Remove the lower track and reattach it using a square to make sure it is at 90 degrees to the screen housing. The door should start sliding back easily into the housing again.