How can you tell if your garage door opener is bad?

You can tell if your garage door opener is bad by checking signs including unusual noises, slow or inconsistent operation, failure to open or close, frequent need for repairs, and age over 10 to 15 years. First, listen for unusual noises like grinding, squealing, rattling, or humming from motor or chain/belt, indicating worn gears, stripped drive, or motor failure. Second, check if opener operates slowly, hesitates, reverses unexpectedly, or door shakes, indicating motor weakening, force settings incorrect, or logic board failing. Third, check if opener fails to open or close door consistently with remote and wall control despite power, batteries, and sensors being okay, indicating logic board or motor failure. Fourth, check if opener vibrates excessively or belt/chain loose or sagging. Fifth, check age, if opener is over 10 to 15 years old for chain/belt drive or 15 to 20 years for jackshaft, it is near end of life and may lack modern safety features like auto-reverse and safety sensors. Sixth, check if opener lacks safety features, older openers without auto-reverse are unsafe and should be replaced. Seventh, check repair cost, if repairs cost more than 50 percent of new opener price of 200 to 500 dollars, opener is bad and should be replaced. Consult professional technician for diagnosis and consider replacing with new MyQ enabled model.