Check these first
- The opener is plugged in, and no breaker or garage GFCI outlet has tripped (press the reset button on the GFCI).
- The manual slide lock on the inside of the door is not engaged. If the lock bar is in the track, the opener cannot move the door.
- Nothing blocks the two photo-eye sensors near the floor. Both lights should be steady; a blinking light means the beam is blocked.
- Try the wall button. If the wall button works and the remote does not, it is the remote battery.
- If the motor runs but the door does not move and the red cord was pulled, push the trolley toward the door until it clicks back onto the carriage.