Garage Door Troubleshooting

This page should help you troubleshoot your garage door problems. While many problems that keep the door from opening are caused by broken springs, a lot of other parts could be keeping your door from functioning properly. One of the more difficult problems for Do-It-Yourselfers to diagnose is a worn cable pulley on an extension spring door. There are, of course, many other problems that can keep your garage door from functioning properly.

Click on a problem below to see the possible causes and solutions.


1. Bottom of the door is up on one side
Cause
Solution
Frayed torsion spring cable
Frayed extension spring cable
Replace extension spring cable (See: cable prices)
Worn extension spring cable pulleys

2. Door closes only if you hold in the push button
Cause
Solution
Misaligned, dirty or defective photo eyes
Align, clean or replace as needed (See: photo eye prices)

3. Door closes part way and then reverses
Cause
Solution
Broken torsion spring cable
Broken extension spring cable
Replace extension spring cable (See: cable prices)
Close force not properly adjusted
Adjust the force
Dry rollers, bearings
Lubricate as needed with 3 in 1 motor oil
Misaligned, dirty or defective photo eyes
Align, clean or replace as needed (See: photo eye prices)
Track is bent
Straighten, adjust or replace track (See: track prices)
Worn extension spring cable pulleys

4. Door is cocked
Cause
Solution
Broken torsion spring cable
Broken extension spring cable
Replace extension spring cable (See: cable prices)
Worn extension spring cable pulleys

5. Door is jammed
Cause
Solution
Broken torsion spring cable
Broken extension spring cable
Replace extension spring cable (See: cable prices)
Track is bent
Straighten, adjust or replace track (See: track prices)
Worn extension spring cable pulleys

6. Door is uneven
Cause
Solution
Broken torsion spring cable
Broken extension spring cable
Replace extension spring cable (See: cable prices)
Worn Extension spring pulleys

7. Door opens slowly
Cause
Solution

8. Door won't close all the way - it is uneven
Cause
Solution
Broken torsion spring cable
Broken extension spring cable
Replace extension spring cable (See: cable prices)
Worn extension spring cable pulleys

9. Door won't close all the way
Cause
Solution
Door binds in tracks
Adjust track spacing or trim molding. Replace any bent hinges
Track is bent
Straighten, adjust or replace track (See: track prices)
Worn extension spring cable pulleys

10. Door won't open
Cause
Solution
Track is bent
Straighten, adjust or replace track (See: track prices)

11. Door won't stay open
Cause
Solution
Spring has taken a set
Adjust spring or springs

12. Loud bang before the door quit working
Cause
Solution

13. Opener is straining as the door opens
Cause
Solution

14. Popping sound as the door operates
Cause
Solution

15. Radio controls will open but not close the door
Cause
Solution
Misaligned, dirty or defective photo eyes
Align, clean or replace as needed (See: photo eye prices)

16. Rear support for the upper track is broken
Cause
Solution
Broken extension spring cable
Replace the cable (See: cable prices)

17. Scraping sounds
Cause
Solution
End bearing plate is tilted
Straighten or reinforce the bearing plate as needed. File the shaft and replace the bearing as needed (See: bearing prices)
Frayed torsion spring cable
Frayed extension spring cable
Replace extension spring cable (See: cable prices)
Misaligned reinforcing strut
Space the strut evenly on the sections
Worn extension spring cable pulleys

18. Squeaks
Cause
Solution
Dry rollers, bearings or hinges
Lubricate as needed with 3 in 1 motor oil