oCentereachsensorunitina "C"wrapwithlenses pointingtowardeachotheracrossthedoor(see _gure 6).

•Securesensorswiththehardwareshown°Finger tightenthewingnutonthereceiving eye to allow

for final adjustment. Securely tighten the sending eye wing nut.

•Run the wires from both sensors to the opener. Use insulated staples to secure wire to wall and ceiling.

o Strip 1/4" of insulation from each set of wires. Separate white and white!black wires sufficiently to

connect to the opener terminal screws: white to 2 and white/black to 3.

Aligning the Safety Sensors

•Plug in the opener. Green indicator lights in both the sending and receMng eyes will glowsteadilyif wiring connections and alignment are correct.

The sanding eye indicator light will glow regardless of alignment or obstruction. If the indicator light is off, dim, or flickering in the receiving eye (and the invisible light beam path is not obstructed), alignment is require&

•Loosen the sending eye wing nut and readjust, aiming directly at the receiving eye. Lock in place.

•Loosen the receiving eye wing nut and adjust sensor vertically and/or horizontally until it receives the sender's beam. When the green indicator light glows steadily, tighten the wing nut.

Figure 6

Trouble Shooting

1oIf the sending eye indicator light does not glow steadily after installation, check for.

•Electric power to the opener.

•A short in the white or white/black wires. These

can occur under staples or at screw terminal connections.

•Incorrect wiring between sensors and opener.

•An open wire (wire break).

2.If the sending eye indicator light glows steadily but the receMng eye indicator light doesn't:

•Check alignment.

•Check for an open wire to the receiving eye.

3.If the receiving eye indicator light is dim, realign either sensor.

NOTE: When the invisible beam path is obstructed or misaligned while the door is closing, the door will reverse. If the door is already open, # will not close. The opener lights will flash 10 times. (If bulbs are not installed, 10 clicks are audible.) See page 21.

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Craftsman 139.53675SRT owner manual
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139.53675SRT specifications

The Craftsman 139.53675SRT is a versatile garage door opener designed to offer homeowners convenience, reliability, and a host of advanced features. Known for its ease of use and robust performance, this model has gained popularity in various residential settings.

One of the standout features of the Craftsman 139.53675SRT is its powerful 1/2 horsepower motor. This motor is designed to lift standard garage doors with efficiency and speed, providing a smooth opening and closing experience. Whether your door is lightweight or heavy, this opener can handle the task with minimal noise and vibration.

Incorporating advanced technology, the Craftsman 139.53675SRT features a rolling code security system. This enhances safety by changing the access code every time the remote is used, preventing unauthorized access. This technology ensures that you can trust your garage door opener to keep your home secure.

Another notable characteristic of this model is its compatibility with smartphone technology. The unit supports Smart Garage technology, allowing users to connect via their smartphones. Users can monitor and control their garage door from anywhere, adding an extra layer of convenience to everyday life.

Additionally, the Craftsman 139.53675SRT comes with a wireless keypad, which allows for keyless entry and makes it easy for family members or trusted friends to access the garage without needing to give out remotes. This keypad can be mounted outside the garage door, ensuring that anyone needing entry can do so without hassle.

Installation is made simpler with the detailed instructions provided, and the opener is designed to work with most standard garage door sizes. Additionally, the unit features a soft start and stop mechanism that reduces wear on the door and opener, extending the lifespan of both.

Safety is a priority with the Craftsman 139.53675SRT. The unit is equipped with safety sensors that detect obstructions in the door’s path, automatically reversing if anything is in the way. This feature helps to prevent accidents and injuries, particularly in households with children or pets.

In summary, the Craftsman 139.53675SRT is a reliable and feature-rich garage door opener that prioritizes convenience, safety, and technology. With its powerful motor, advanced security features, and smart connectivity, it has positioned itself as a strong contender in the market for garage door openers.
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