MOUNTING AND WIRING THE SAFETY SENSORS Figure 4

•Slide a 1/4"-20x1/2" carriage bolt head into the slot on each sensor. Use wing nuts to fasten sensors to

brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed

by a bracket extension. See Figure 4.

•Finger tighten the wing nuts.

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

•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. The indicator lights in both the sending and receiving eyes will glow steadily if wiring connections and alignment are correct.

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

•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 until it receives the sender'sbeam. When

the green indicator light glows steadily, tighten the wing nut.

114"-20xl/2" _

Wing nut

Cardage bolt

TROUBLESHOOTING THE SAFETY SENSORS

1.If the sending eye indicator light does not g/ow steadily after installation, check for:

• Electricpower to the opener.

•A short in the white or white/black wires. These can occur at staples, or at screw terminal connections.

•Incorrectwiring between sensors and opener.

•A broken wire.

2.If the sending eye indicator light g/ows steadily but the receivingeye indicatorlight doesn't:

•Check alignment.

•Check for an open wire to the receiving eye.

3.If the receivingeye indicatorlight is dim, realign either sensor.

NOTE: When the invisib/ebeam path is obstructed or misa/igned while the door is c/osing, the door wi// reverse. /f the door is a/ready open, it wi// not dose. The opener /ights willflash 10 times. See page 21.

Figure 5

Connect Wire to

Opener Terminals

Bell Wire

__ Finished __

 

Ceiling

 

Door Control

 

Sensor

Bell Wire

Connections

_

Connections

 

(dotted line)

.'-

J

%

OPENER TERMINAL SCREWS

Sellsot"

Invisible Light Seam

Protection Area

23

Page 22 Page 24
Page 23
Image 23
Sears 139.53971SRT Mounting and Wiring the Safety Sensors Figure, Aligning the Safety Sensors, Opener Terminal Screws
Page 22 Page 24

139.53960SRT, 139.53968SRT, 139.53971SRT specifications

Sears 139.53971SRT, 139.53968SRT, and 139.53960SRT are a series of garage door openers that have gained recognition for their reliability and advanced features. These models represent a shift towards smarter technology in home automation, providing homeowners with increased convenience, security, and control over their garage doors.

One of the standout features of these models is their Smart Technology integration. Each unit is equipped with the ability to connect to Wi-Fi, allowing users to control their garage doors remotely through a smartphone app. This means that you can open or close your garage door from anywhere, check its status, and receive notifications if the door is left open for an extended period. This feature enhances home security by providing real-time updates, giving users peace of mind when they are away from home.

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Overall, the Sears 139.53971SRT, 139.53968SRT, and 139.53960SRT garage door openers combine modern technology with user-friendly features to offer a secure, efficient, and convenient garage solution for today's smart homes. Their innovative approach addresses the traditional needs of homeowners while embracing new technological advancements, making them a relevant choice in today's market.
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