Over tightening the chain will put excess wear and tear on the shaft and gears.
Troubleshoot garage door opener not working.
This may sound obvious but your garage door transmitters need power to work.
Check the chain tension.
The opener remotely sends an infrared or ir signal to a receiver that triggers a switch promting an electric motor to open or close the garage door.
The transmitter batteries are dead.
If you re too far away this can cause a.
If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.
Before any garage door remote works correctly.
If the leds on both sensors glow it means they are not faulty.
Simple but true the remote transmitter needs power to send a signal to your opener.
To help you troubleshoot your garage door issues here are the top 10 reasons your garage door won t work.
Disconnect the pre wire from the garage door opener connect the white wire from the sensor to the white terminal of the garage door opener and then the black and white wire to the grey terminal.
You may also need to reprogram your keypad or replace the batteries in it.
If pressing the button on your garage door s remote control doesn t work check the batteries first.
Most chain drive openers suggest you tighten the chain so there s about 1 4 in.
Now point the safety sensors at each other.
From informational videos to product manuals and troubleshooting articles the chamberlain group resource library has the information you need.
It s also possible that the circuit breaker fuse or gfci outlet powering the door opener circuit has tripped or burned.
Of slack from the rail to the chain check your manual.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
Also verify the antenna on the motor unit is in the proper placement.
They can be found at the back panel of your craftsman garage door opener to increase the open force turn the open force dial about 1 4 of a full turn similarly to increase the close force turn the close force about 1 4 of a full turn operate your garage door.
Garage door won t open all the way.
Finally it s possible the garage door opener s motor.