Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+ "year stanley opener" Questions

STANLEY GARAGE DOOR OPENER mODEL#9105 OPENS WHEN NOTHING IS UNDER BEEN DOING THIS FOR A COUPLE OF WEEKS. NOW TODAY IT IS OPEN PART WAY AND WON'T GO DOWN. THE GARAGE FUSES HAVE BEEN TRIPPING WHEN USING

...year old home with a Stanley 1/2 hp garage door opener. The problem is 2 fold. When it gets cold out...below 30, the door will close and then open by itself. We also have it open by itself during the ...