Electric garage door openers are usually reliable devices, but as with any mechanical or electrical component, garage door openers can fail. One possible cause of an electric garage door opener failure is a defective circuit board.
Below is more information about electric garage door openers, including how to diagnose a problem with the circuit board and replace it if broken.
How to Determine if the Circuit Board is Bad
Like many other mechanical devices, garage door openers rely upon electronic controls.