Door closes partway then reverses to open; no visible obstruction; occurs more in cold weather.

Safety first: Do not increase force to overcome a heavy or damaged door. Fix mechanical issues first.

Steps:

• Inspect door hardware: Check rollers, hinges, and tracks for damage or debris. Clean tracks and lubricate rollers and hinges with silicone-based garage door lubricant.
• Test door balance: Disconnect the opener and move the door by hand. It should move smoothly and stay at mid-height. If not, have springs adjusted by a professional.
• Adjust force: Slightly increase the CLOSE FORCE setting on the Genie opener (dial or electronic). Make small adjustments and test after each change.
• Retest in cold conditions: Ensure the door still reverses properly when obstructed (e.g., with a 2x4 laid flat under the door) after adjustments.