Chain drive garage door openers have a sprocket that is attached at the top of the motor.
Garage door opener loose sprocket.
Make basic checks first.
Over time the sprocket s teeth can wear and the chain may jump or skip when the opener raises the door.
Disconnect the power cord from your door opener before doing any kind of repair.
Step 1 turn off the power.
Check the breaker controlling the door opener and.
If you replace the sprocket assembly in your chain drive garage door opener yourself you may be able to save a lot of money.
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Replacement gear and sprocket for liftmaster garage door openers 41c4220a 4 9 out of 5 stars 39.
The process isn t as hard as you may think so consider the guide below.
Ensure that the unit is plugged in the door isn t locked and if you are using a remote that the remote has batteries.
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