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


Frayed torsion spring cable

Frayed extension spring cable

Worn extension spring cable pulleys

Solution


Replace torsion spring cable (See: cable prices)

Replace extension spring cable (See: cable prices)

Replace the worn pulleys (See: pulley prices)



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2. Door closes only if you hold in the push button

Cause


Misaligned, dirty or defective photo eyes

Solution


Align, clean or replace as needed (See: photo eye prices)



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3. Door closes part way and then reverses

Cause


Broken torsion spring cable

Broken extension spring cable

Close force not properly adjusted

Dry rollers, bearings

Misaligned, dirty or defective photo eyes

Track is bent

Worn extension spring cable pulleys

Solution


Replace torsion spring cable (See: cable prices)

Replace extension spring cable (See: cable prices)

Adjust the force

Lubricate as needed with 3 in 1 motor oil

Align, clean or replace as needed (See: photo eye prices)

Straighten, adjust or replace track (See: track prices)

Replace the worn pulleys (See: pulley prices)



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4. Door is cocked

Cause


Broken torsion spring cable

Broken extension spring cable

Worn extension spring cable pulleys

Solution


Replace torsion spring cable (See: cable prices)

Replace extension spring cable (See: cable prices)

Replace the worn pulleys (See: pulley prices)



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5. Door is jammed

Cause


Broken torsion spring cable

Broken extension spring cable

Track is bent

Worn extension spring cable pulleys

Solution


Replace torsion spring cable (See: cable prices)

Replace extension spring cable (See: cable prices)

Straighten, adjust or replace track (See: track prices)

Replace the worn pulleys (See: pulley prices)



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6. Door is uneven

Cause


Broken torsion spring cable

Broken extension spring cable

Broken extension spring

Worn extension spring pulleys



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7. Door opens slowly

Cause


Broken torsion spring



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8. Door won't close all the way - it is uneven

Cause


Broken torsion spring cable

Broken extension spring cable

Worn extension spring cable pulleys

Solution


Replace torsion spring cable (See: cable prices)

Replace extension spring cable (See: cable prices)

Replace the worn pulleys (See: pulley prices)



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9. Door won't close all the way

Cause


Door binds in tracks

Track is bent

Worn extension spring cable pulleys

Solution


Adjust track spacing or trim molding. Replace any bent hinges.

Straighten, adjust or replace track (See: track prices)

Replace the worn pulleys (See: pulley prices)



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10. Door won't open

Cause


Broken torsion spring

Broken extension spring

Track is bent



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11. Door won't stay open

Cause


Spring has taken a set

Solution


Adjust spring or springs



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12. Loud bang before the door quit working

Cause


Broken torsion spring

Broken extension spring



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13. Opener is straining as the door opens

Cause


Broken torsion spring

Broken extension spring



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14. Popping sound as the door operates

Cause


Worn rollers



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15. Radio controls will open but not close the door

Cause


Misaligned, dirty or defective photo eyes

Solution


Align, clean or replace as needed (See: photo eye prices)



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16. Rear support for the upper track is broken

Cause


Broken extension spring

Broken extension spring cable

Solution


Replace the broken extension spring (See: extension spring prices)

Replace the extension spring cable (See: cable prices)



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17. Scraping sounds

Cause


End bearing plate is tilted

Frayed torsion spring cable

Frayed extension spring cable

Misaligned reinforcing strut

Worn extension spring cable pulleys

Solution


Straighten or reinforce the bearing plate as needed. File the shaft and replace the bearing as needed (See: bearing prices)

Replace torsion spring cable (See: cable prices)

Replace extension spring cable (See: cable prices)

Space the strut evenly on the sections

Replace the worn pulleys (See: pulley prices)



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18. Squeaks

Cause


Dry rollers, bearings or hinges

Solution


Lubricate as needed with 3 in 1 motor oil



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Unmatched Support. The Right Part. DIY with Confidence!

YES, WE'RE OPEN FOR BUSINESS! 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?"

PLEASE NOTE: DUE TO COVID-19 SHIPPING TIMES ARE NOT GUARANTEED, EVEN ON NEXT DAY AND SECOND DAY SHIPMENTS. NORMAL TRANSIT TIMES DO NOT APPLY.