When a door won’t lift, a technician releases tension safely, replaces matched springs and cables, inspects drums and trusted duncan hvac company bearings, and resets balance so the door holds mid-travel. Tracks are leveled and rollers lubricated for smooth, quiet motion.
If the opener grinds, a belt-drive with soft-start and LED lighting is a strong upgrade. Finish with sensor alignment, force/limit tests, and an emergency-release check.
A seasonal tune keeps parts clean and prevents surprise breakdowns. schedule service
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