Opener starts to move, then stops and reverses; red STATUS LED flashes 4 times; door may stop mid-travel.

Safety first: Never increase force to compensate for a heavy or binding door. Fix door mechanics first. Disconnect power before mechanical work.

Steps:

• Inspect tracks and rollers: Check for bent tracks, damaged rollers, or obstructions. Clean tracks and lubricate rollers and hinges with garage door lubricant (not grease).
• Test door by hand: Disconnect the opener and move the door manually. It should move smoothly with moderate effort. If it is heavy or sticks, have springs and hardware serviced by a professional.
• Adjust force settings: On many Genie models, there are OPEN FORCE and CLOSE FORCE dials or electronic settings. Increase slightly (1 step at a time) and test. Do not exceed manufacturer recommendations.
• Inspect drive gear: Remove the cover and inspect the main drive gear and sprocket. If teeth are worn or plastic shavings are present, replace the Genie drive gear kit.
• Retest: After mechanical corrections and force adjustment, clear the error by cycling power and run a full open/close test.