How to Replace External Entrapment Protection Sensors for Garage Doors
One of the main features that you want to consistently be in good repair is your external entrapment protection system. These systems come in many different forms like laser sensors and photoelectric eyes and their job is to make sure that the door reverses when an object moves into its path. Over time these sensors can become damaged and worn out necessitating immediate substitute. Because they are just small plastic boxes and you’re generally unaware of them, just a small kick can throw them out of alignment and they don’t respond to temperature shifts very well. Since they are your main defense from becoming retained beneath the garage door, especially if you have pets or small children, they need to be replaced closest when you notice that they no longer work.
To perform this substitute you’ll need the following:
- New sensors
- A screwdriver
- Pin snips
- A cord, rope or string
- 2 Electrical joiners
- 2 Electrical joiner covers
- A Level
You can buy a good set of sensors at your local hardware store, or consult your local garage door service provider. When doing any electrical work, make sure that you shut off the strength to that section of the house and mark the box with a observe saying you are doing so. If you can’t figure out which breaker leads to the garage, turn off the main. You’re trying to increase the safety of your home, not get electrocuted so use your discretion about which one you feel more comfortable with.
Locate the wires that connect the sensors to their electrical satisfy. Using your pin snips, clip them loose. Unscrew the fastenings and remove the sensor. Repeat this course of action on the other side of the garage door.
Now mount the new sensor in the exact same position as the old one. Do this just by eyesight; you’ll adjust it later. To make sure that you can easily and quickly adjust the sensor, don’t fully tighten it down.
Now attach the wiring to the electrical satisfy using the electrical joiners. Screw the wires into place so that they cannot be pulled loose. Once this is done, break the covers over the joiners to make sure that they can’t be tampered with or stir the curiosity of a child. Repeat this course of action, again, on the other side of the garage door.
Now we have to align the sensors to make sure that they work properly in tandem. Take the cord or string and tape it into place on top of the sensor. Stretch the cord the length of the garage door and place it on top of the other sensor. Making sure that the string is pulled tight, tape it down.
Set your level on top of the taught cord. The level should tell you whether or not your sensors are level to each other. If you find that the bubble is not hitting dead center in the level, adjust the sensors until they are completely level. It’s usually easier to measure one sensor to an approximate height of 6 inches above the floor and adjust the other sensor to it. Don’t measure each sensor individually because your garage floor may not be thoroughly level.
Once the sensors are completely level with one another, screw them firmly into place. Readjust the string and test the level again.
Once you’ve installed the sensors, you need to give them a test run. Turn the strength to the garage back on. Use your far away to close the garage door. When the door reaches about half way down, place your hand between the sensors. The door should closest reverse. If it does not, you need to turn the strength back off and make further adjustments.
This is a fairly simple installation and shouldn’t take you very long. In fact, the most time you’ll use on this course of action will be with the adjusting of the sensors.