The solutions first check your fuses gfci or breaker to see if any of them have tripped broken or burnt out.
Trouble opening garage door.
If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.
The trolley moves along the chain drive the long track attached to the ceiling when the garage door is opening or closing attached via a metal.
The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
First check to see if the transmitter on the wall inside your garage still opens your garage door when pressed.
Garage door opener won t open all the way fix.
Check power door lock the power door lock must be deactivated anytime you open the garage door.
If the circuit breaker or gfci is tripping repeatedly it s a sign that there is a short circuit somewhere in the system possibly even the garage door opener itself.
This is a problem that will require you or a service person to replace it.
Check to see if the trolley has been disconnected.
If you have a problem with your wall switch being unable to open or close the garage door then it s often a problem somewhere in the power supply.
If it does then the transmitter in your car likely just needs a simple battery replacement.
Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening.
Finally it s possible the garage door opener s motor has burned out and isn t operating at all.
This feature prevents the motor inside the garage door opener from damaging.