Garage Door Symptoms Index

Garage Door Symptoms Index (Start Here)

Pick the closest symptom below. Each guide uses safe checks only (no risky DIY repairs) and clearly tells you when to stop and call a pro.

Category Guides (Pillar Posts)

These are the main “pillar” guides for each category. Start with the one that matches your situation:

Won’t Open / Won’t Close

See all Won’t Open / Won’t Close posts · Read the full guide

Garage door won’t open at all
Garage door won’t close at all
Garage door opens a little, then stops
Garage door closes halfway, then reverses
Garage door closes, then immediately opens back up

Sensors / Safety / Reversing

See all Sensor & Safety posts · Read the full guide

Garage door sensor light blinking
One sensor light on, the other off
Door reverses when it touches the floor
Door won’t close in bright sunlight
Door won’t close when it’s raining/humid

Opener / Remote / Keypad

See all Opener/Remote/Keypad posts · Read the full guide

Remote works only up close
Wall button works but remotes don’t
Keypad works but remote doesn’t
Opener clicks but door doesn’t move
Door won’t open after a power outage

Noises / Vibration

See all Noise & Vibration posts · Read the full guide

Loud bang in garage (then the door won’t work)
Grinding noise when opening or closing
Squealing/screeching noise
Rattling chain/belt noise
Popping/clicking during movement

Power / Lights / Battery Backup

See all Power & Battery posts · Read the full guide

Opener has power but won’t run
Opener light flashes then stops
Battery backup beeping
Door works sometimes (intermittent)
Door won’t open after a power outage

Weather / Seal / Insulation

See all Weather/Seal posts · Read the full guide

Door won’t seal at the bottom
Drafts/cold air around the edges
Door sticks in winter
Condensation inside the garage
Bottom seal gap on one side

Not sure what you’re seeing?

Start here and follow the quick checklist: