Adjustment

Step 3

I

 

Test The Safety

Reversing Sensor

 

•Press the remote control push button to open the door.

•Place the opener carton in the path of the door.

•Press the remote control push button to close the door. The door will not move more than an inch, and the opener light(s) will flash.

Professional service is required if the opener

closes the door when the safety reversing sensor is obstructed.

The garage door opener will not close from a remote control if the indicator light in either sensor is off(alerting you to the fact that the sensor is misaligned or obstructed).

The garage door can be closed by pressing and holding the Door Control push button until down

travel is completed.Safety Reversing SensorSafety Reversin_J Sensor

Adjustment Step 4

I

 

Test the Safety Reverse System

 

Test:

•Place a one-inchboard (or a 2x4 laid flat) on the floor, centered under the garage door.

•Operate the door in the down direction. The door must reverse on striking the obstruction.

Adjustment:

If the door stopson the obstruction, it is not traveling far enough in the down direction.

•Increase the DOWN limit by turning the DOWN limit adjustment screw counterclockwise 1/4 turn.

•Repeat the test.

On a sectional door, make sure limit

adjustments do not force the door arm beyond a straight up and down position. See the illustration on page 26.

•When the door reverses on the one-inch board, remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment.

If the door will not reverse after repeated adjustment attempts, call for professional garage door service.

T'oooi

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m

Important safety check

Repeat Adjustment Steps 1, 2 and 4 after:

•Each adjustment of door arm length, force controls or limit controls.

•Any repair to or adjustment of the garage door (including springs and hardware).

•Any repair to or buckling of the garage floor.

•Any repair to or adjustment of the opener.

3O

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Craftsman 139.53664SRT2 Test The Safety Reversing Sensor, Test the Safety Reverse System, Important safety check
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139.53664SRT2 specifications

The Craftsman 139.53664SRT2 is a highly regarded garage door opener that combines reliability, advanced technology, and user-friendly features. Designed for residential use, this model stands out due to its robust functionality and ease of installation, making it a popular choice among homeowners.

One of the standout features of the Craftsman 139.53664SRT2 is its powerful motor. It boasts a 1/2 horsepower motor capable of lifting standard residential garage doors with ease. This strength means reliable performance even in adverse weather conditions, ensuring that your door operates smoothly and efficiently each time.

Another key technology in this model is the Smart Control system. The Craftsman 139.53664SRT2 allows users to operate their garage door remotely, thanks to its built-in Wi-Fi connectivity. By connecting to a smartphone app, homeowners can monitor and control their garage door from anywhere, providing added convenience and security. This feature also enables users to receive alerts and notifications, ensuring they are always informed about the status of their garage door.

Security is a top priority for the Craftsman brand, and the 139.53664SRT2 features advanced security measures, including rolling code technology. This technology generates a new access code each time the remote is used, effectively preventing unauthorized access and ensuring that your garage remains secure.

The installation of the Craftsman 139.53664SRT2 is straightforward, thanks to its user-friendly design and comprehensive instructions. Many users appreciate that it can be installed as a DIY project, saving on installation costs while providing the satisfaction of completing the task themselves. The system is compatible with most existing garage door systems, making it versatile for different setups.

In terms of noise level, the Craftsman 139.53664SRT2 operates quietly, allowing for a smooth opening and closing process without disturbing the household. This feature is particularly beneficial for those with living spaces above the garage.

Overall, the Craftsman 139.53664SRT2 is a dependable garage door opener that integrates modern technology, ensuring safety, convenience, and ease of use. Its powerful motor, Wi-Fi capability, and enhanced security features make it a valuable addition to any home.
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