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.

Garage door troubleshooting
  1. Bottom of the door is up on one side
  2. Door closes only if you hold in the push button
  3. Door closes part way and then reverses
  4. Door is cocked
  5. Door is jammed
  6. Door is uneven
  7. Door opens slowly
  8. Door won't close all the way - it is uneven
  9. Door won't close all the way
  10. Door won't open
  11. Door won't stay open
  12. Loud bang before the door quit working
  13. Opener is straining as the door opens
  14. Popping sound as the door operates
  15. Radio controls will open but not close the door
  16. Rear support for the upper track is broken
  17. Scraping sounds
  18. Squeaks

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)
Broken extension spring
Worn Extension spring pulleys

7. Door opens slowly
Cause
Solution
Broken torsion spring

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
Broken torsion spring
Broken Extension Spring
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
Broken torsion spring
Broken extension Spring

13. Opener is straining as the door opens
Cause
Solution
Broken torsion spring
Broken extension Spring

14. Popping sound as the door operates
Cause
Solution
Worn Rollers

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
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

Unmatched Support. The Right Part. DIY with Confidence!

IMPORTANT NOTE REGARDING LOCAL PICKUPS: DDM is considered a life-sustaining company because we are an internet retail company that provides essential products. Due to the recent outbreak of Coronavirus, however, we are changing our local order pickup policy at our West Chicago location. To pick up an order you will need to order first. The quickest way is to order in advance through our online shopping cart. There you can select the local pickup option. Or, you can call 630-293-1337 for assistance, to confirm availability of parts, and to place your order. Once ordered, your parts will be available for pickup in the lobby of our north side front entrance. Longer items will be picked up on the south side loading dock. Please honor the six foot social distancing rule. Thank you for your patience and understanding as we all navigate this challenge together. More information is available on our blog titled DDM Adjusts to the COVID-19 Coronavirus. In the same article you will also find documentation and an answer to the question: "Is a garage door repair company a life sustaining business?"