Craftsman Openers - funny problem
I have two craftsman openers and both have come down with the same problem.
Opener A is about 15 years old, and I have replaced the gears twice now. It's working fine other than the problem.
Opener B is about 5 years old and I haven't had any problems till now.
So the problem is that (with the doors DETACHED from the trolley) I'll hit the button and the motor will run - trolley moves about 1-3 inches - and stops. There is no blinking on opener A, but there is on opener B. Ive checked the light sensor on opener B (there isn't one on opener A) and it's clear.
Opener A has the additional problem that it acts like the motor is siezed about a third of the time. I hit the button and I get a hum from the motor, yet there is no motion from the motor. The other 2/3s of the time the trolley moves 1-3 inches.
Any idea what's going on? I last replaced the gears on opener A 6 months ago.