If it s been a few years since you changed one skip the first two steps and.
Troubleshooting garage door not opening.
Over tightening the chain will put excess wear and tear on the shaft and gears.
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.
The most likely problem is batteries.
Finally it s possible the garage door opener s motor.
First check to see if the transmitter on the wall inside your garage still opens your garage door when pressed.
Door closes part way and then reverses 4.
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 closes only if you hold in the push button 3.
If it does then the transmitter in your car likely just needs a simple battery replacement.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
These are heavy duty springs that do all of the hard work when opening your door.
Garage door reversing before closing garage door openers manufactured after 1993 include sensors to prevent a door from closing on a child or pet.
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.
Door is jammed 6.
Check the chain tension.
Don t attempt to wiggle any wires unless your fingers are well away from the connections or.
This one falls squarely into the category of user error.
Garage door troubleshooting 1.
How to troubleshoot a garage door that won t open things you will need.
Door is cocked 5.
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.
Check to make sure that you haven t accidentally disconnected the motor.
Door opens slowly 8.
If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.
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.
If so flip the breaker switch to the.
If everything else is working well then it could be that the power in.
Garage door won t open all the way.
Door is uneven 7.
Of slack from the rail to the chain check your manual.