Garage Door Opener Troubleshooting

Liftmaster garage door opener troubleshooting.

Garage door opener troubleshooting.

Garage door opener won t open all the way fix. The garage door opens partially. It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned. If you garage door is lowering then reversing back to the open position there could.

Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast. Garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet. If your garage door reverses anytime you open or close it there could be. As with many such problems the most common problem is the simplest one the motor unit has been unplugged.

Finally it s possible the garage door opener s motor. Liftmaster garage door openers are designed to stop if it senses a. The wall switch doesn t work first check your fuses gfci or breaker to see if any of them have tripped broken or burnt out. If this is the case then replace the fuse or reset the breaker or gfci and try the wall switch again.

The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.