The door can become crooked, jam, or drop unexpectedly. It’s unsafe to operate and should be repaired immediately.

Look for fraying, rust, slack, or uneven door movement. If the door looks tilted, stop using it.

Noisy rollers may be worn, dry, bent, or have failing bearings. Replacing rollers can reduce noise and improve smoothness.

Lubrication helps if rollers are in good condition. If they’re worn, cracked, seized, or wobbling, replacement is better.

Nylon rollers often run quieter. Steel rollers are durable but can be noisier depending on quality and condition.

Yes. Worn rollers can cause uneven travel, vibration, and track wear, leading to more expensive repairs.

Yes. Cables interact with spring tension. Improper handling can cause sudden movement, injury, or door damage.

Yes. Proper repairs include alignment checks, tension adjustments, and safety testing.