Craftsmen Garage door opener
I have a Craftsmen Garage Door Opener which has been functioning correctly for 5 years. Today, when my wife push the button on the remote to close the door the door started to go down. About a 1/3 of the way down the door stop and reversed its direction. Once the door was complely re-opened the light began to flash. As if someone had walked through the sensor. I checked the sensors for dirt or possible bug/spider on the lens but I found nothing. If I hold down the button on either the remote or the button inside the garage until the door is more than halfway down the opener will close the door completly. If I don't hold the button down the opener will reverse direction. Any Ideas????