Bell Wire

i

i

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Safety Reversing Sensor

Diagnostic Chart

Safety reversing sensors wire open (broken or disconnected).

OR

Safety reversing sensors wire shorted or black/white wire reversed.

Door control or wire shorted.

Safety reversing sensors slightly misaligned

(dim or flashing LED).

Motor overheated or possible RPM sensor failure. Unplug to reset.

Motor Circuit Failure.

Replace Receiver

Logic Board.

f

Your garage door opener is programmed with self-diagnostic capabilities. The "Learn" button/diagnostic LED will flash a number of times then pause signifying it has found a potential issue. Consult Diagnostic Chart below.

Symptom: One or both of the Indicator lights on the safety reversing sensors do not glow steady.

•Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/white wires reversed), broken or disconnected wires, replace/attach as needed.

•Disconnect all wires from back of motor unit.

•Remove sensors from brackets and shorten sensor wires to 1-2 ft (30-60 cm) from back of each sensor.

•Reattach sending eye to motor unit using shortened wires. If sending eye indicator light glows steadily, attach the receiving eye.

•Align sensors, if the indicator lights glow replace the wires for the sensors. If the sensor indicator lights do not light, replace the safety reversing sensors.

Symptom: LED is not fit on door control

•Inspect door control/wires for a short (staple in wire), replace as needed.

•Disconnect wires at door control, touch wires together. If motor unit activates, replace door control.

•If motor unit does not activate, disconnect door control wires from motor unit. Momentarily short across red and white terminals with jumper wire. If motor unit activates, replace door control wires.

Symptom: Sending indicator light glows steadily, receiving indicator light is dim or flashing.

•Realign receiving eye sensor, clean lens and secure brackets.

•Verify door track is firmly secured to wall and does not move.

Symptom: Motor has overheated; the motor unit does not operate or trolley is stuck on stop bolt = Motor unit hums briefly; RPM Sensor = Short travel 6-8" (15-20 cm).

•Unplug unit to reset. Try to operate motor unit, check diagnostic code.

•If it is still flashing 5 times and motor unit moves 6-8" (15-20 cm), replace RPM sensor.

•If motor unit doesn't operate, motor unit is overheated. Wait 30 minutes and retry. If motor unit still will not operate replace logic board.

Symptom: Motor unit doesn't operate.

• Replace logic board because motor rarely fails.

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Sears 139.53915D owner manual Symptom LED is not fit on door control, Symptom Motor unit doesnt operate
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139.53915D specifications

The Sears 139.53915D is a significant addition to the lineup of garage door openers, blending both functionality and modern technology to enhance user convenience. This model is designed to accommodate residential garage doors, forming a reliable solution for homeowners who prioritize safety, security, and ease of use.

One of the standout features of the 139.53915D is its powerful motor, capable of handling heavy garage doors with ease. With its 1/2 horsepower motor, it ensures a smooth and swift opening and closing mechanism, allowing for quick access while still maintaining durability. This strength is particularly beneficial for larger or heavier doors that require more power for reliable operation.

The opener utilizes a chain drive system, renowned for its durability and strength. Chain drive systems are highly effective in providing reliable performance, making them a popular choice for various households. Despite this robust mechanism, the opener remains relatively quiet during operation, minimizing disruptions in the home environment.

A key characteristic of the Sears 139.53915D is its security features. It is equipped with rolling code technology, which generates a new code every time the remote control is used. This significantly enhances security by preventing unauthorized access and ensuring that only designated users can operate the garage door.

Additionally, the model features a safety reverse system, which automatically reverses the door's direction if it encounters an obstruction while closing. This not only protects vehicles and other possessions but also safeguards pets and children—an essential component for family households.

Installation of the Sears 139.53915D is designed to be straightforward, with comprehensive instructions that facilitate an efficient setup process. For those who prefer a seamless experience, the opener is compatible with several accessories, including smart home technologies. This compatibility allows users to integrate their garage door opener into a broader home automation system, providing added convenience and control through smartphone apps or smart devices.

In summary, the Sears 139.53915D garage door opener is a robust, reliable choice for homeowners seeking an efficient and secure opening mechanism. Its combination of a powerful motor, durable chain drive system, advanced security features, and ease of installation make it a formidable option in the market for garage door solutions.
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