Looking after a garage door is a short owner’s routine plus a yearly visit from a trained door technician. Once a month you check the door’s balance with the door closed first, run the reverse test and the photo-eye test, and look over the springs, cables, rollers and tracks without touching anything under spring tension. A few times a year you lubricate what your makers name, check the seals and change batteries. The parts that carry the door’s weight are the technician’s. The guides below take each job in turn.
General information, not professional advice. Your door’s maker, your opener manual and a trained door technician decide what’s safe for your door, and local codes decide what needs a permit.
You check The monthly balance check, reverse test and photo-eye test; a hands-off look at springs, cables, rollers and tracks; lubrication where your maker says; seals and the gap at the floor; remote and backup batteries.
Stop if the door doesn’t reverse, is heavy or won’t stay put when released, runs crooked, binds or leaves its track, or you see a gap in a spring or a loose or frayed cable. Don’t run the door, keep people and cars clear, and call a trained door technician.
Technician Springs, lifting cables, drums, bottom brackets and bottom rollers, spring tension and balance, hardware on parts under tension, and bent or loose track.
Start with the names of the parts
A residential sectional door, the kind that rolls up in panels, is three sets of parts working together. The door itself: sections, hinges, rollers, tracks and seals. The counterbalance system that carries the door’s weight: torsion or extension springs, the torsion shaft, cable drums, lifting cables and bottom brackets. And the opener: motor unit, rail, trolley, emergency release, photo eyes or another safety sensor, and the wall control. The trade’s own names for these come from DASMA’s terminology sheet (DASMA TDS-160, Rev. 1/19).
Our garage door parts guide names each part, says what it does and says who works on it. If you aren’t sure which springs your door has, torsion vs extension springs shows how to tell from the floor.
The monthly routine
The federal opener rule puts one test in every opener manual, in the same words:
“Test door opener monthly. The garage door MUST reverse on contact with a 1 1/2 inch object (or a 2 by 4 board laid flat) on the floor. After adjusting either the force or the limit of travel, retest the door opener. Failure to adjust the opener properly may cause severe injury or death.”
16 CFR 1211.16(b)(2), item 5
Check the balance first: with the door closed, pull the emergency release, lift the door to about 3 to 4 feet and let go. Genie’s 2024 opener manual says the door “should remain stationary or slowly drift closed” (Genie manual 42598.02135, 10/2024, p. 21). The balance test guide explains what a door that drops or rises means. Then run the reverse test with a 2 by 4 laid flat, and the photo-eye test with an object passed through the beam (DASMA TDS-364, 6/26). Full steps are in our garage door safety guide; sensor lights are in garage door sensors.
The release comes with its own federal warning: “if possible, use the emergency release only when the door is closed … Weak or broken springs may allow the door to fall rapidly, causing injury or death” (16 CFR 1211.16(b)(2), item 6). See opening the door by hand.
For the whole routine, with how often each task comes up and who says so, start with our monthly and yearly maintenance checklist. CPSC’s own advice is to inspect the door and opener every 30 days (CPSC Publication 523).
Lubrication: follow your own maker
The makers we read disagree on what, where and how often. Genie’s manual says “a light weight general purpose grease” on rollers and hinges, monthly. Chamberlain’s 2023 opener guide says to oil door rollers, bearings and hinges yearly, and “Do not grease the door tracks” (Chamberlain 114-5851-000, p. 14). Clopay’s maintenance guide says never to use grease and to leave nylon rollers dry (Clopay maintenance guide). Follow your door’s maker for the door and your opener’s maker for the opener.
Do it with the door closed and the opener unplugged. A torsion spring is sprayed only, where your door’s maker lists it, and never touched. The points at the lift cables, drums and bottom brackets go to the technician’s yearly visit. Our garage door lubricant guide sets the makers side by side, part by part.
Rollers and tracks: guides, not lifters
The rollers run in the tracks and steer the door; the springs and cables carry its weight.
- Rollers. Signs of wear are broken wheels, bent shafts, worn-out bearings, or a door that no longer runs smoothly and quietly. Clopay describes steel rollers as “for strength” and nylon “for quieter operation”. The bottom rollers sit in the bottom brackets, which also anchor the lifting cables and are under spring tension, so this site treats them as technician work on every door. See garage door rollers.
- Tracks. Look with the door closed and keep them clean (Clopay: a small brush and a damp cloth). A track that isn’t perfectly upright may be set that way on purpose: DASMA describes deliberate tapers and a rise toward the back (TDS-160). A bent or loose track, or a door that binds or sits crooked, is technician work: the track’s bottom meets the bottom bracket. See garage door tracks, and if a roller has already come out, garage door off track.
Seals and the gap at the floor
A door can have up to four seals: the bottom seal on the door’s lower edge, a threshold glued to the floor, and weatherstripping along the sides and top of the opening. DASMA’s checklist asks whether the closed door rests on the floor “with no gap” (DASMA TDS-167, Rev. 4/23, item 12c). It’s a safety point too: Chamberlain’s 2013 manual for the PD612EV says any gap must not exceed 1/4 inch, or the safety reversal system may not work properly.
Clopay treats a bottom seal that slides into its retainer, the metal channel on the door’s lower edge, as a job a handy owner can do by its instructions. The steps stop at the retainer: never loosen anything at the bottom corners, where the brackets hold the lifting cables. Any new seal or threshold changes where the door lands, so run the reverse test again afterwards. Seal types and the maker’s steps are in our garage door seals guide.
Springs and cables: look, don’t touch
Federal law makes every opener manual say: “An improperly balanced door could cause severe injury or death. Have a qualified service person make repairs to cables, spring assemblies and other hardware” (16 CFR 1211.16(b)(2), item 7). From the floor, with the door closed, look for a gap in a torsion spring, frayed or slack cables, and a containment cable through the middle of each extension spring (TDS-167). A gap means a broken spring: read broken garage door spring. A loose or frayed cable: garage door cable snapped or loose. More in our springs and cables guides.
Clopay says most garage door springs are designed to last 10,000 cycles, one cycle being up and down. Our spring life estimate turns a rating into years at your own use.
The opener’s share
Genie’s monthly list includes the remote battery, and a backup battery, if your opener has one, is tested with the door closed; DASMA says backup batteries need replacing after 2 to 5 years (DASMA TDS-385, 1/24). More in opener battery backup. If a light is blinking, look it up in our opener error code lookup before you assume something has failed. Openers made since 1 January 1991 carry their manufacture date on the unit (16 CFR 1211.19).
The yearly technician visit
Clopay recommends having the door “professionally inspected annually” (Clopay safety checklist). It covers what you can’t: the springs and the door’s balance, the lifting cables, drums, bottom brackets and bottom rollers, hardware under tension, the track and its hangers, and the opener’s travel and force, followed by a reverse test. Ask whether both springs and the cables were checked, and for a reverse test before the technician leaves.
A reading path
Start with the parts guide, then set up the monthly routine with the checklist and the safety guide. Next, the lubricant guide, then rollers, tracks and seals. If a check fails, stop and use the troubleshooting guides to describe the problem to a technician.
Your next step: today, with the door closed, do the balance check, then the reverse test with a 2 by 4 laid flat, then the photo-eye test. If all three pass, set a monthly reminder. If any fails, don’t run the door, keep people and cars clear, and call a trained door technician. Write down the opener’s model and date, any code, the spring type, and what you saw or heard.
Sources checked on 10 November 2026.
