Convenience is pressing the button of your radio control from the comfort of your car and watching the automatic garage door operator open the door and turn on the light. Drive in and press the button again (or the wall switch). The door shuts behind you— and locks. A time-delay switch leaves the operator light on until you’ve had an opportunity to get out of the car and into the house. It turns off automatically in about 1-1/2 or 2 minutes.
Automatic garage door operators give you protection, too—protection from the wind and weather, plus protection from prow lers. They protect the garage contents when you leave because it’s so easy to close the door with a push of the button. Most operators feature a return switch which causes the automatic reversal of the door when it encounters an obstruction during its downward movement.
Most residential automatic door openers will operate with any type of overhead garage door type—roll-up sectional, one-piece with tracks, and one-piece trackless. When selecting the opener unit for your garage door, check the manufacturer’s specifications to make certain there is sufficient headroom and back space (the area between the back of the opener and garage wall). Also check the high-rise, or the distance between the highest arc of the door travel and the garage ceiling. Most openers require at least 3-inch clearance.
Before installing the opener, make sure that the door operates properly and that all moving parts are well lubricated. The present lock must be made inoperable by jamming it in the open position or by cutting off the lock bar ends so they can’t engage the slots in the track. The door opener could be mined if it tried to open when the garage door was locked. Of course, it’s not necessary to lock the door since a door equipped with an automatic operator can’t be opened manually from outside the garage. If an electrical failure occurs, most openers can be operated manually from inside the garage.
When it comes to the actual installation of the automatic garage door operator, be sure to carefully follow the manufacturer’s directions given in the owner’s manual. Once the unit is installed, check its operation before mailing in the warranty card to the manufacturer. 
Troubleshooting a door operator.
If electrical problems with the operator can’t be determined or remedied, the electrical assembly may be easily removed and returned for repair or replacement. To remove, disconnect the push-button and radio wires, the power source leads or plug-in cord, and the five wires to the terminal board of the electrical assembly from motor and lamp(s). Then remove the mounting screws and carefully remove the electrical assembly. Here are some common problems that occur with typical automatic operators and their possible solutions.
| PROBLEM | POSSIBLE САШЕ | SOLUTION |
| Operates from push-button but won’t operate from hand transmitter control. | Weak batten,.
Transmitter or receiver inoperable. |
Replace batten,-.
(-heck wires from receiver. Return receiver with transmitter for repair. |
| Won’t open or close from radio or push-button. | Blown house fuse.
Open circuit breaker in the motor. Defective lamp timer. Defective capacitor. Defective relay. Defective transformer. Defective motor. Door binding. |
Check line fuse.
Allow few minutes for motor to cool off and try again. Replace. Replace. Replace. Replace. Replace. Repair and/or adjust. |
| Reduced operating range of radio control. | Weak battery.
Transmitter or receiver out of adjustment. Too cold. |
Replace.
Return receiver with transmitter for adjustment. Batteries tend to lose power in extremely cold weather. |
| Unexpected (phantom) operation (door goes up and down on its own). | Radio control. Push-button.
Staple through push-button wire causing short circuit. |
Return receiver with transmitter for repair.
Repair or replace. Remove staple. |
| Light does not work. | Bulb.
Lamp timer. Light socket. |
Replace. Replace. Replace. |
| PROBLEM | POSSIBLE CAUSE | SOLUTION |
| Door makes one operation either up or down, operator stops running and will not start again when radio or wall push-button is pressed. (Disconnect power line from operator and immediately reconnect again. Operator makes one more complete cycle.) | Shorted push-button wires or radio control receiver wires.
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