· by Michael Blair, Nashville's Garage Door
A garage door in good order makes a steady hum from the opener and a low rumble from the rollers, and not much else. When a new sound appears, it is worth stopping to listen, because most garage door sounds map neatly to a specific part, and several of them are warnings. The door weighs a few hundred pounds, the springs hold that weight, and the difference between a noise that needs lubricant and one that needs a technician is worth knowing.
Sounds that usually mean maintenance
Squealing or squeaking as the door moves is dry rollers, hinges or springs. A garage door lubricant, not a general-purpose penetrating spray, on the roller stems, the hinge pins, the spring coils and the bearing plates quiets it in minutes. Rattling as the door runs is loose hardware: hinge bolts, track brackets and the opener rail all work loose with vibration and can be snugged with a wrench. A metallic slapping from the chain of a chain-drive opener is chain slack, adjusted at the trolley.
A door that is louder than it used to be across the whole travel, with no single new sound, often has worn steel rollers. Nylon rollers with sealed bearings are the standard upgrade and make a noticeable difference, especially under a bedroom.
Sounds that mean wear
Grinding is the sound to take seriously. It can be a roller riding out of its track, a worn opener gear, or a track that has been bent, and running the door through it makes each one worse. Look at the rollers as the door moves; a roller that is out of its track or wobbling on a broken stem is a door that is about to jam. A grinding from the opener head with the door moving slowly or not at all is a stripped drive gear.
A popping or ticking sound as the door goes up, one pop per section, is usually a hinge or roller that binds momentarily, or a section that is separating slightly at the hinge. On a door with a torsion spring, a rhythmic pop from the spring as it winds is the coils sticking and releasing, which lubricant fixes, but a spring that has started to gap between coils is nearing the end.
- Grinding: roller, track or opener gear, stop and look
- Popping per section: binding hinge or roller
- Scraping on one side: door out of level or a bent track
- Straining hum with slow movement: spring losing tension, opener overloaded
The sounds that mean stop
A loud bang from the garage when nobody was using the door is a torsion spring breaking. It is unmistakable. Afterward the door will be extremely heavy, the opener will strain or refuse, and a visible gap will show in the spring above the door. Do not try to open it with the opener and do not try to lift it by hand; a broken spring means the full weight of the door is on the opener and on anyone under it.
A door that shudders, jerks or drops a few inches when it starts down, or that is noticeably harder for the opener to lift than it was, has springs that have lost tension. Cables that fray or a cable that has come off its drum make a slapping or a grinding and leave the door hanging crooked. All of these are spring and cable work, which is done under high tension and is a job for a technician with the right bars and winding cones.
Keeping it quiet
Lubricate the moving parts twice a year with a garage door lubricant, check the hardware for looseness, and replace steel rollers with nylon when they start to roar. Test the balance annually: pull the release, lift the door halfway by hand, and let go. It should stay put. A door that drifts down has springs that need adjusting, and a door that is out of balance is what makes the opener grind and eventually fail.
If the opener itself is the loudest thing, and it is a chain drive from a couple of decades ago, a belt-drive or direct-drive replacement is the quiet option, and modern units come with the safety features older ones lack.