Garage Door Won't Open? A Quick Alpharetta Troubleshooting Guide

Published 2026-05-21 · Garage Door Service Alpharetta

A garage door that will not open is frustrating, especially when your car is trapped inside. A few safe checks solve the simple cases, and tell you when it is time to call a technician.

Start with the obvious

Check that the opener has power and that the wall button works even if the remote does not. A dead remote battery or a tripped outlet is a five minute fix. If the opener motor runs but the door does not move, the trolley may be disconnected, so look for a hanging red cord and the carriage it connects to.

Check the photo eye sensors

Every modern opener has two small sensors near the floor on each side of the door. If they are misaligned or blocked, the door will not close, or it reverses partway down. A bumped sensor or a cobweb is a common culprit. Wipe them and make sure both indicator lights are steady.

Look, but do not touch, the springs

If you heard a loud bang from the garage and now the door will not open, a torsion spring likely broke. You may see a gap in the spring coil above the door. This is where troubleshooting stops. Those springs are under enormous tension, and a 200 to 400 pound door with a broken spring is dangerous to operate by hand.

Off track doors

If the door is crooked, jammed, or a roller has come out of the track, do not force the opener. Running the motor against an off track door bends panels and can snap cables, turning a small repair into a big one.

When to call a pro in Alpharetta

Broken springs, frayed cables, off track doors, and bent panels are not DIY jobs. A technician carries the right spring sizes for the homes around Avalon, Windward, and downtown Alpharetta and can usually have you back in service the same day.