both doors should have ~ same pressure to keep doors close.
1 side lighter then...
light door lost a spring.
heavy side is binding.
Find out which then try to fix.
Which type of door motor system? many ways the motor(s) can fail to open/shut but which generation matter.
See my Cave, Gen 1 HL Motor
and Gen 2 HL Motor
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)