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Garage Door Opener Broke

3249 Views 7 Replies 5 Participants Last post by  cgoll
Our garage door opener suddenly failed. Lift Master brand. When you press the button (or remote) the light comes on but the head unit just hums. Almost like the gears are siezed.

I took the chain off the drive sprocket. No change in the situation. The door itself works fine when disconnected.

I used a channel locks on the sprocket to try to unstick the gears but there is no play there.

We have two standard size garage doors each with a separate opener. The units are likely original to the house (1989).

I had to replace the plastic gear sets in both shortly after we bought in 2000 after they both stripped within 6 months of each other, but that failure caused the motor to run but not move anything.

Now it seems the motor is trying to move the door but facing insurmountable load. (Again, note it is the same with the chain off the sprocket.)

Any thoughts?

1 - 2 of 8 Posts
The unit should be replaced. Finding parts for pre-1993 models may be difficult as many of those models have been discontinued. Service providers are unable to repair models that do not have safety features as required by UL325. New garage door opener models come standard with some form of reversing feature, either photo eyes or reversing safety edge. A brand new operator is also covered by a warranty in case of future problems.
Some places still offer free estimates. You could ask for estimates from garage door companies that reflect service versus replacement of the unit allowing you the ability to compare price points. Considering the age of the unit they'll most likely recommend replacing it which you could do on your own, but maybe that will help steer you in the right direction.
1 - 2 of 8 Posts
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