1 the transformer has failed due to a power surge.
Garage door opener light stopped working.
Depending on the model most work by connecting two to four wires onto terminals mounting the device on the wall and then plugging the unit into an electrical outlet.
Then within 30 seconds hold the button on your remote for three seconds or until garage door opener s lights flash or the led light on your opener blinks.
In this situation the only option is to replace the logic board or the entire garage door opener.
Here is what may cause your garage door opener to not power on.
Adjust the close limit adjustment screw on the door opener motor in small increments until the door stops upon touching the floor.
More and more products are being produced at a faster rate and that leads to reduced quality.
Once it s unplugged wait approximately 5 minutes and then plug your garage door opener back in again.
Find the chamberlain garage door opener technical support you need to get your garage door opener operational.
Garage door reverses immediately after touching the floor when the garage door immediately leaps upward after touching the floor this too is a close limit switch problem.
To reboot your whole system turn off and unplug your garage door opener.
Locate the force adjustment dials.
3 the circuit board itself is faulty.
In some case the light bulb socket will stop working when the logic board for the opener has failed or is failing.
We have observed brand new light bulbs that don t work right out of the box.
2 the glass fuse on the circuit board has blown or popped.
Light bulb needs to be replaced in garage door opener.
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.
A wall console unit for a garage door opener is not a complicated device so it s fairly simple to troubleshoot when something seems to go wrong.
By rebooting your garage door opener you ll clear all the stored memory and hopefully eliminate issues in the future.
If your garage door opener light is not working the fix might be as simple as changing the light bulb.
To reprogram your garage door remote locate then press your opener s learn button.
4 a wire or wire harness is loose or burnt.