An overhead garage door is the heaviest moving mechanical system in your home. Use this 10-point checklist to inspect your door monthly, identify mechanical risks, and know when professional service is required.
Garage door springs and lift cables operate under over 300 lbs of torque tension. NEVER attempt DIY repairs, adjustments, or unbolting bottom fixtures.
Perform these non-hazardous visual and functional checks monthly to protect your family and catch mechanical failures early.
Look at the torsion springs mounted on the steel shaft above the closed garage door or extension springs on the sides.
Visually inspect the steel cables attached to the bottom corners of the door spooling up to the overhead drums.
With the door open, press the remote to close it, and wave a long object across the infrared beam path 6 inches off the floor.
With the door FULLY CLOSED, pull the red emergency disconnect cord, then lift the door manually halfway (3 to 4 feet off floor).
Lay a solid 2×4 block of wood flat on the floor in the center of the doorway and activate the door to close.
Visually inspect the vertical and horizontal steel tracks and the mounting brackets securing them to the framing.
Listen to the door during travel and check the roller wheels inside the vertical track channels.
Inspect the steel hinges connecting each door section and the horizontal U-bar reinforcement struts.
Verify that the red manual release rope hanging from the opener carriage operates smoothly.
Inspect the heavy rubber weather seal running along the bottom aluminum retainer of the garage door.