Do not force movement
Unexpected resistance can indicate debris, misalignment, hardware damage, structural movement or an unsafe strut or actuator condition.
Compare the complete opening
Check reveals, level, panel alignment, hinges, rollers, tracks, seals, sill debris, screen path and visible fasteners.
Isolate power safely
Motorized systems require an approved power and manual-override procedure before inspection or service.
Use documented parts and adjustments
Struts, rollers, hinges, locks and controls are configuration-specific. Service from the opening record rather than appearance alone.
Turn the guide into a real opening schedule.
Keep every dimension, option, pressure, document, and delivery note connected to the same opening ID.
Start the configurationQuestions about this topic
What should I do if a gas-strut sash will not stay open?
Stop using it, keep people clear and have the approved hardware and mounting geometry inspected. Do not add force or substitute struts without system guidance.