Garage doors are the largest object in a house and that is why you must make sure that it is maintained properly. Garage door openers do not only help you to open and close your garage door, it also provides security to your door. Garage doors openers are mechanical devices and can face issues. While it is necessary to seek the help of a professional technician when you need to fix problems with your garage door opener, you must educate yourself with a few important tid-bits to diagnose an issue. Read on to understand a few things related to door openers. Diagnostic codes The new and modern door openers are equipped with diagnostic codes. These codes flash on the screen if there is any problem. If you notice any diagnostic code flashing on the screen of your door opener remote control, you can consider going through the manufacturer's manual to understand the problem. If it is a minor problem you should be able to fix it with the help of a few troubleshooting tips that are usually included in a user's manual. Optic sensor Legally speaking, garage door openers must be equipped with optic sensors that are capable of detecting a person or an object that is nearby to the garage door. Optic sensor is a significant safety feature. Note that any problem in the optic sensor can drastically affect the performance of your garage door opener. For an instance, if the optic sensor is not aligned correctly with the sensor attached on the door, the door would not open. There must be a trail of uninterrupted light beams between the two sensors. If you face any issue in this regard, do check if the beams are being interrupted by any chance. If there is no interruption, you must consider checking is the 'eyes' of your optic sensor are aligned correctly. If not, you must rotate the 'eyes' and adjust the alignment. Closing force The force with which your garage door closes is a significant aspect in maintaining your door opener. This force is completely adjustable. Too much force could be dangerous. Too less force could be insufficient. Contact a professional company if you want to get help with your garage door openers. Ashburn citizens can approach Andrew's Garage Door Repair for availing professional services related to garage doors.