Refer to Adjustment , Adjust the Force

HAVIHG A PROBLEM?

1.My door will not close and the light bulbs blink

on my motor unit: The safety reversing sensor must be connected and aligned correctly before tile garage door opener will move in the down direction

-Verify the safety sensors are properly installed, aligned and free of any obstructions. Refer to InstallationStep 10:'Instafl The Protector SysterrP.

•Check diagnostic LED for flashes on the motor unit then refer to the Diagnostic Chart on the following page.

2f My remotes will not activate the door:

•Reprogram remotes following the programming instructions. Refer to Programming

•if remote will still not activate your door, check diagnostic LED for flashes on motor unit then refer to Diagnostic Chart on the following page

3.My door reverses for no apparent reason:

Repeat safety reverse test after adjustments to force or travel limits The need for occasional

adjustment for the force and limit settings is normal. Weather conditions in particular can affect door travel

= Manually check door for baiance or any binding problems

° Refer to Adjustment Step 2, Adjust the Force.

4.My door reverses for no apparent reason after fully closing and touching the floor: Repeat safety reverse test after adjustments to force or travel limits..The need for occasional adjustment for the force and limit settings is normal. Weather conditions in particular can affect door travel

, Refer to Adjustment Step 1, Adjust the UP and DOWN Travel Limits. Decrease down travel by

turning down limit adjustment screw clockwise

Bell V_fire

Safety Reversing Sensor

Seeding Eye S_fety Reversing	Receiving Eye Safety Reversing
	Sensor (Green Indicator Ught)
Sensor (Amber Indicator Light)	J

5.My motor unit hums briefly:

-First verify that the trolley is against the stop bolt.

o Release the door from the opener by pulling the Emergency Release Rope.

•Manually bring the door to a closed position

•Loosen the chain by adjusting the outer nut 4 to 5 turns= This relieves the tension

Run the motor unit from the remote control or door control, The trolley should travel towards the door and stop. If the trolley re-engages with the door, pull the Emergency Release Rope to disengage.

Decrease the UP travel by turning the UP Travel adjustment screw 2 fult turns away from

the arrow.

Re-tighten the outer nut so the chain is a

t/2" (13 mm) above the base of the rail (When the door is reconnected and closed, the chain will sag. This is normaL)

If the trolley does not move away from the bolt, repeat the steps above.

139.53920D specifications

The Craftsman 139.53920D is a versatile and robust garage door opener, designed to provide both convenience and security to homeowners. Known for its reliability and advanced features, this model stands out in the competitive market of garage door openers.

One of the key features of the Craftsman 139.53920D is its powerful motor. With a lifting capacity suitable for most standard garage doors, it boasts a 1/2 horsepower motor that delivers the strength necessary to open and close heavy garage doors effortlessly. This ensures a smooth and quiet operation, minimizing noise disruptions, which is especially valuable for homes with living spaces above or adjacent to the garage.

In terms of technology, the Craftsman 139.53920D incorporates a range of advanced features aimed at enhancing user experience. It comes equipped with Craftsman's proprietary Triband technology, which operates on three frequencies, providing increased range and improved signal reliability. This technology minimizes signal interference, ensuring that the opener responds quickly to your commands, whether you are close by or parked at the end of the driveway.

Safety is also a critical aspect of the Craftsman 139.53920D. The unit includes an automatic reverse feature that immediately stops and reverses the door's motion if it detects an obstacle in its path. This is vital in preventing accidents and ensuring the safety of children and pets. Additionally, the opener is compatible with the Security+ 2.0 system, which offers rolling code technology that changes the access code each time the remote is used, adding an extra layer of security against unauthorized access.

Installation of the Craftsman 139.53920D is user-friendly, with clear instructions provided and all necessary hardware included. The unit can accommodate various garage door styles, making it a flexible choice for different homeowners.

Furthermore, the Craftsman 139.53920D offers smartphone compatibility through the Craftsman smart app, allowing users to control their garage door from anywhere, receive real-time alerts, and even monitor the status of the door remotely. This feature makes it easier than ever to ensure that your garage is secure, even when you're not at home.

In summary, the Craftsman 139.53920D is an excellent choice for homeowners seeking reliability, advanced technology, and convenient features in a garage door opener. Its blend of power, safety mechanisms, and smart technology makes it a standout option for enhancing home security and convenience.

Craftsman 139.53920D owner manual Refer to Adjustment , Adjust the Force

Models: 139.53920D