Ten years ago we decided our Liftmaster chain drive garage door opener motor was too loud after listening to a neighbor's very quiet motor. We replaced with a Liftmaster belt drive and, as advertised, the motor was whisper quiet. This month the Liftmaster motor seized and we had to replace. The installation company told us that the new chain-drive motors were just as quiet as the belt-drive motors. So we installed and were horrified at the loud whining of the motor! We asked the technician to upgrade us to the "whisper-quiet" belt drive unit. We were again horrified that the belt-drive motor was just as loud as the chain-drive motor with the same loud whining sound! So what we have surmised is that, since our 10-year old belt drive unit motor was MUCH quieter than the brand spanking new belt-drive unit, Liftmaster has decreased the quality of their product to save money or something. Our bedroom sits right above the garage and the whine is absolutely noticeable. We are now absolutely disappointed in Liftmaster products.
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Manufacturer of auotmatic parking lot and driveway gate operators with inherent backup power.
