Sears Garage door opener problem
I have a 10 year old Sears 1/2 garge door opener that was working fine. Now, I cannot get the light in the sensor at the door to come on. I have checked the connection and the wire and find no problem. Door will open with the remote but not close. Just starts to close, stops, and light blinks. Can close by holding down the control mounted in the garage by overiding the sensors. Any help would really be appreciated. Thanks.