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General| Type | Garage Door Opener |
|---|---|
| Model Number | 139.53995SRT |
| Horsepower | 1/2 HP |
| Frequency | 60 Hz |
| Remote Control Frequency | 315 MHz |
| Remote Controls | 2 |
| Safety Sensors | Yes |
| Smart Home Compatibility | No |
| Voltage | 120V |
| Remote Control | Yes |
Explains safety symbols and signal words like WARNING and CAUTION used throughout the manual.
Details critical safety precautions and cautionary notes for preparing the garage door before opener installation.
Covers specific planning points for sectional doors, including reinforcement and placement advice.
Emphasizes safety warnings and provides installation diagrams for one-piece doors.
Details how to determine the header bracket location for sectional doors and one-piece doors with tracks.
Explains calculation methods and shows diagrams for mounting header brackets on one-piece doors.
Provides step-by-step guides for installing the header bracket onto the garage wall or ceiling structure.
Instructions for positioning the opener unit for sectional, tracked one-piece, and non-tracked one-piece doors.
Illustrates two common methods for attaching hanging brackets to support the opener unit.
Covers safety, wiring, and mounting for the wall-mounted door control console, including diagrams.
Details the steps for making a permanent electrical connection to the motor unit, bypassing the plug.
Explains the importance and placement of safety sensors for detecting obstructions during closing.
Covers preferred track mounting, wall mounting, and floor mounting procedures for sensor brackets.
Offers solutions for common problems encountered with the safety reversing sensors, such as indicator light issues.
Specific instructions for installing the door bracket on sectional garage doors, including placement and reinforcement.
Explains alternative mounting locations for the door bracket on one-piece doors when necessary.
Step-by-step instructions for connecting the door arm to the trolley for sectional garage doors.
Explains how to adjust the UP and DOWN travel limits specifically for one-piece doors.
Explains the conditions requiring travel limit adjustments and the procedure for making them.
Details the process for testing and adjusting the opening and closing force of the garage door opener.
Explains how to activate and use the garage door opener with various control methods.
Provides instructions on how to disconnect the trolley and manually open or close the garage door.
Explains how to replace the battery in the remote control, including safety warnings.
Provides solutions for a wide range of problems, from non-operation to noise and intermittent issues.
Step-by-step instructions for programming new or existing remote controls to work with the opener.
Identifies and labels all components for the rail assembly and the installation process.
