Garage Door Opener Chain Does Not Move

Chain-Driven Garage Door Openers

• This type of garage door openers use a chain-and-sprocket system that runs the door on its track. The chain-drive opener is a simple system that generally offers reliable operation even in harsh winter climates. Chain-driven systems are noisier than other types of openers, however, which may be an annoyance when garages are located close to living quarters or bedrooms.

Chain Problems

• Over time, chair-drive garage door opener units can loosen. This problem should be repaired as soon as possible to avoid malfunctions during opening. Tighten loose or sagging chains at the adjustable links on the chain or at the lift motor box. Avoid overtightening the chain which can damage the system, according to the HandyAmerican website. Dragging or scraping of the chain on the track can be corrected by oiling the chain with a suitable spray oil. Broken chains should be replaced, using manufacturer’s approved parts. Excessive noise from the system may be a result of a broken sprocket which should be replaced.

Causes of Chain Not Moving

• A common problem of chain-drive openers occurs when the you hear the motor running but the door will not open. When the chain stops operating and will not move on the track, it may be because of a broken gear within the unit, according to the SpectrumOverheadDoor website. Homeowners should order replacement parts from the manufacturer, referring to part numbers listed in the manual they received with the purchase of their opener. Remove and replace the gear as indicated in the manual or have a garage door opener technician do the repair. A broken pulley can also prevent the chain from moving on the track. A broken spring can also cause the chain to remain stationary on the track. Broken springs should only be replaced by a qualified garage door opener technician.

Routine Garage Door Opener Maintenance

• Homeoowners should inspect their garage door opener annually to check for loose screws or brackets, misalignment, bent tracks or other visible problems. These minor tightening repairs can help to stabilize the opener and prevent more seriously problems such as broken pulleys, chains or tracks. Apply 3-in-1 oil, WD-40 or other oil for garage door openers to the rollers, track and chains.