Possible Causes
- Worn rollers
- Track obstruction or damage
- Spring imbalance
- Opener travel or force issue
- Cable problems
Avoid Repeated Cycling
Repeatedly running a struggling opener can increase wear. If the door is binding or uneven, stop using it until the cause is identified.
What a Technician Checks
A repair visit can include door balance, track condition, rollers, cables, springs, and opener operation.