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Homegarage door repairLiftmaster 8550 garage door opener repair in north york
Home Liftmaster 8550 garage door opener repair in north york
20
Nov
Liftmaster 8550 garage door opener repair in north york

A customer called complaining of a garage door not lifting and an error message appearing on the LCD screen saying excessive force to open. Over the phone I diagnosed it as the torsion springs being broken. Upon arrival the tirsion springs were fine, and the garage door didn’t need balancing. After trying to run the garage door motor the message didn’t disappear, reprogramming the limits and the force did not help either. After disconnecting the power and the battery back up, upon start up the message disappeared. We suspect a power surge erased the programming in circuit board and caused it to think the garage door was to heavy


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