Of slack from the rail to the chain check your manual.
Troubleshooting garage door not opening.
Most chain drive openers suggest you tighten the chain so there s about 1 4 in.
If this is the case then replace the fuse or reset the breaker or gfci and try the wall switch again.
If you garage door is lowering then reversing.
Garage door troubleshooting 1.
Check the chain tension.
Door won t close all the way it is uneven 9.
Door closes part way and then reverses 4.
It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned.
Check your home s breaker panel service panel to see if the breaker that powers your garage it should be labeled is no longer in the on position.
Door opens slowly 8.
If your door will not open and you re confident that the motor and the transmitters are functioning correctly there s a good chance you have a problem with your garage door torsion springs.
Finally it s possible the garage door opener s motor.
If it does then the transmitter in your car likely just needs a simple battery replacement.
If everything else is working well then it could be that the power in.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
Garage door reversing before closing garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet.
Over tightening the chain will put excess wear and tear on the shaft and gears.
Check to make sure that you haven t accidentally disconnected the motor.
Garage door won t open all the way.
Door is cocked 5.
How to troubleshoot a garage door that won t open things you will need.
Door closes only if you hold in the push button 3.
If so flip the breaker switch to the.
Every garage door opener comes with a disconnect switch cord or knob that allows you to work the door manually in case of a power outage.
If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.
Bottom of the door is up on one side 2.
The most likely problem is batteries.
Door is uneven 7.
Don t attempt to wiggle any wires unless your fingers are well away from the connections or.
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.
Door is jammed 6.
This one falls squarely into the category of user error.