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Repair the opener or replace it?
Short answer
Most garage door opener repairs come down to a stripped drive gear, a failed capacitor, a bad logic board or drifted travel limits, and national cost guides put opener repair at about $100 to $500. Before touching the opener, we test the door by hand, because an opener that strains is often fighting a broken spring rather than failing itself.
Warning signs
Signs the opener itself is the problem
It hums but the door does not move
The motor runs, but a stripped gear or failed capacitor means nothing reaches the rail.
It clicks and does nothing
Often the capacitor or the logic board, sometimes a dead wall-button circuit.
The trolley moves but the door does not
The door is disconnected from the trolley or the trolley is broken.
It stops partway every time
Travel limits have drifted or the force setting trips on a heavy door.
Remotes work sometimes, not always
A failing receiver, dead batteries or interference near the antenna.
The job
How an opener fails, and how we find out
An opener is a motor, a gear, a trolley on a rail and a small computer that sets how far and how hard the door moves. Each part fails in its own way. The motor can run while a plastic gear inside has worn smooth. The logic board can lose its limits. A capacitor can fail and leave the motor humming but unable to start.
The door has to be ruled out first. With the opener disconnected, a balanced door stays put halfway up. If it does not, the opener has been lifting dead weight, and repairing it without fixing the springs only sets up the next failure.
Motor hums but the door will not move
When the motor hums but the door will not move
A hum with no movement usually means power reaches the motor but it cannot turn the drive. On many chain and belt openers the start capacitor is the cheap culprit. If the motor turns but the trolley does not, the drive gear inside has stripped. Both are repairable on an opener with years left in it. On a very old unit we price the repair next to a new opener so you can choose.
Stripped drive gear
Replacing a stripped drive gear
The main gear in many residential openers is nylon, built to strip before something more expensive breaks. It wears faster when the door is heavy or the opener's force is set too high. Replacing it means opening the housing, swapping the gear and sprocket, and resetting the limits, and it is worth doing only when the door is balanced and the motor is sound.
Logic board or travel limits
Logic board and travel limit problems
If the door stops short, reverses at the floor or will not respond to the wall button, the logic board or its limit settings are the usual suspects. Limits drift over time and after power surges. Some boards can be reset; others need replacing. We check the wiring and wall button too, because a chewed or pinched wire can look just like a failed board.
How the visit runs
How an opener repair visit runs
- 1
Test the door
Opener disconnected, door balanced by hand.
- 2
Diagnose the opener
Power, capacitor, gear, board, limits and wiring.
- 3
Price repair and replacement
Side by side when the opener is old.
- 4
Repair and reset
Part replaced, travel limits and force reset.
- 5
Test with you
Full runs, photo eyes, safety reverse and remotes.
Around Naperville
Cold mornings and Naperville openers
January is Naperville's coldest month, with an average low of 17F, and in deep snaps like January 2014, which averaged a low of about 6F, grease in the rail and gear stiffens and the door gets harder to move. An opener that has been compensating for a worn spring or a tired gear for months is the one that quits on that morning, so cold-weather calls are where we check the door and the opener together.
Do it yourself or call
What you can try before calling
Some opener problems are simple. The ones involving the door's weight are not.
Fine to do yourself
- Check the outlet and the breaker for the opener
- Replace remote and keypad batteries
- Make sure the lock button on the wall control is off
- Clean the photo eye lenses and check their lights
Leave to a technician
- Opening the opener housing near live wiring
- Replacing gears, capacitors or logic boards
- Adjusting force on a door that may be out of balance
- Anything involving the springs or cables
Cost
What a garage door opener repair costs
National cost guides put opener repair at about this range. It is a planning figure, not our quote; you hear our price before work starts.
- Which part failed: gear, capacitor, board or wiring
- The opener's age and whether parts are still made
- Whether the door needs balancing first
- Remote and keypad reprogramming
- An overnight or holiday call
We install and repair LiftMaster, Chamberlain and Genie openers, along with Marantec and other makes found in Naperville garages.
- LiftMaster
- Chamberlain
- Genie
- Clopay
- Amarr
- Wayne Dalton
- C.H.I.
- Raynor
- Haas Door
- Overhead Door
- Windsor Door
- Marantec
Answers
Questions about garage door opener repair
Usually a failed start capacitor or a stripped drive gear. Sometimes the door is too heavy because a spring has broken. We check the door first.
If the motor is sound and parts are available, a gear or capacitor repair is often worth it. On very old units without current safety features, replacement is usually the better spend.
Most often the photo eyes or the close force setting. If the door has become heavy, the opener reverses because it senses resistance.
Cold stiffens grease and makes a heavy door harder to move, which can trip the opener's force limit. A balanced, lubricated door rarely has the problem.
We answer 24/7. If the door is stuck open or a car is trapped, tell us when you call and that job goes first.
Same group
Related door work we handle
Garage Door Opener Installation
New belt or chain drive openers hung, wired, aligned and force-tested.
Jackshaft Opener Installation
Wall-mount openers that free the ceiling for storage or a lift.
Smart Garage Door Opener Installation
Phone control and open-door alerts added to new or existing openers.
Garage Remote & Keypad Programming
Remotes, keypads and car buttons paired to the opener and old codes cleared.