Whisper Drive not working
As of today my Whgisper Drive unit will not complete an open or shut cycle. It starts when the remote, or keypad is used, then after 2 seconds it stops and the lights on the unit flash for 4-5 seconds. The lights stay on.
Car Audio & Video - Chamberlain - Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage...
Answers & Comments
Why not call Liftmaster on 800 number. I can see a problem going down with safety beams, but not up.