Sears garage door opener - opens randomly
This pasts week our 1/2 HP Sears garage door opener started opening our garage door randomly - during the day and night. The garage door simply opens all by itself unprompted. The opener is aprox. 5 years old.
Is there an electronics issue with the opener, or, by chance did someone else purchase a new garage door opener in our neighborhood that uses the same frequency as our garage door?