garage door opener just clicks
A week ago our craftsman 1/2hp gdo (about 14 years old) would not go up, about 6inches then close. Tried opening several times. Heard horrible grinding sound and then it stopped. My husband opened it up to find the gears shredded. He replaced the parts tonight. When we hooked it back up and and pressed the wall control it sparked and that was it. He rechecked the wires and tried again and nothing at all happened but a couple of clicks. The sensor lights are on but not the light bulb on the opener. Any suggestions? Thanks.