Garage Door Opener Hums But Chain Doesn T Move

One is the drive and worm gear replacement set which is 25 71 model 41a2817 or the whole drive assembly which includes these parts but is pre assembled is 34 11 model 41c4220a.

Garage door opener hums but chain doesn t move.

When one spring is working and another isn t it may cause the garage door to hum without moving. Sometimes homeowners will find that their automatic garage door opener runs but the door doesn t move. They can hear the motor going but the door itself is not opening. Home owners say that they can hear the motor running but the opener simply will not operate the door.

This is frustrating especially if you re trying to get your car out of the garage. If the motor hums but the chain does not move than the drive gears have stripped out of your unit. If the chain was installed too tightly on the garage door opener it can make opening the door more difficult for the automatic opener. Check each spring to make sure that it isn t damaged and is set in the right spot.

If the gear becomes too worn it will no longer be able to move the chain. The springs need to be put in a certain way so that they continue to work and allow the door to move up and down and catch it smoothly. This will require a bit of time but it is pretty simple to accomplish. This excess tension causes the gear that moves the chain to grind down.

It is best to troubleshoot the issue to determine the appropriate solution. Press the remote or the wall mounted start switch listen to the motor and watch the movement of the chain.