Craftsman 139.53335SRT3, 139.53834SRT3, 139.53646SRT2 Having a Problem?, Probable Cause & Solution

Page 35

Situation

The door opens but won't close:

Having a Problem? (continued)

Probable Cause & Solution

1.If the opener lights blink, check the safety reversing sensor. See page 23.

2.If the opener lights do not blink and it is a new installation, check the down force. See Adjustment Step 2, page 29. For an existing installation, see below.

Repeat the safety reverse test after the adjustment is complete.

The door reverses for

no apparent reason and opener lights don "tblink:

,Is something obstructing the door? Pull the red emergency release handle. Operate the door manually. If it is unbalanced or binding, call for professional garage door service.

2, Clear any ice or snow from the garage floor area where the door closes.

3.Review the force adjustment procedures on page 29.

4.If door reverses in the fu//y c/osedposition, decrease the travel limits (page 28).

Repeat safety reverse test after adjustments to force or travel limits. The need for occasional adjustment of the force and limit settings is normal. Weather conditions in particular can affect door travel•

The door reverses for no apparent reason

and opener lights blink for 5 seconds

after reversing:

The opener light:

The opener strains or maximum force is

needed to operate door:

The opener motor

hums briefly, then won't work:

Check the safety reversing sensor. Remove any obstruction or align the receiving eye. See page 23.

•, • doesn't turn on:

Replace the light bulbs (75 watts maximum), Use a standard neck garage door opener bulb if regular bulb burns out,

•..doesn't turn off,"

Is the Light feature on?.Turn it off

The door may be out of balance or the springs are broken. Close the door and use the emergency release to disconnect the trolley. Open and close the door manually. A properly balanced door will stay in any point of travel while being supported entirely by its springs. If it does not, disconnect the opener and call a professional garage door serviceman. Do not increase the force to operate the opener.

1.The garage door springs are broken. See above.

2.If the problem occurs on the first operation of the opener, door may be locked. Disable the doorlock. If the chain was removed and reinstalled, the motor may be out of phase. Remove the chain; cycle the motor to the down position. Observe the drive sprocket. When it turns in a clockwise direction and stops in the down position, reinstall the chain.

Repeat the safety reverse test after the adjustment is complete•

The opener won't

1.

Use the emergency release to disconnect the trolley. The door can be opened and closed

operate due to

 

manually. When the power is restored, press the Door Control push button and trolley will

power failure:

 

automatically reconnect (unless trolley is in lockout position.) See page 32.

 

2.

The Emergency Key Release accessory (for use on garages with no service door)

 

disconnects the trolley from outside the garage in case of power failure.

 

The chain droops

It is normal

for the

chain to droop

slightly in the closed door position. Use

the

or sags:

emergency

release

to disconnect

the trolley. If the chain returns to normal

height when

 

the trolley is disengaged and the door reverses on a one-inch board, no adjustments

 

are needed (see page 11).

 

 

35

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Contents Craftsman Start by reviewing these important safety alert symbols YoullNeed Tools Closed Position Sectional Door InstallationOne-Piece Door With Track ONE-PIECE Door Installation One-PieceDoor Without TrackTO your Installation Carton Inventory Wit w edT oHardware Installation HardwareSafety Reversing Sensor Installation Hardware Shown Actual Size Assembly Section Pages 8Assemble the T-rail & Attach Cable Pulley Bracket Operation,noiseand/or RightWrongFasten Raft to Opener Install the Trolley on the T-railHardware Shown Actual SizeMasterFigure Assembly StepInstall the Chain/Cable Attach the Sprocket Cover Tighten the Chain & Cable Trolley before adjusting chainIll AbovethedoorIF1 --L--Ji One-piece door without track Pivot hardware One-piece door without track Jamb hardwareFasten the Header Bracket to the Ceiling Install the Header BracketFasten the Header Bracket to the Wall Attach the T-rail to the Header Bracket Sectional Door & ONE-PIECE Door with Track Position the OpenerHang the Opener L!LIIllllllllltllllllllllll Install the Door ControlDo not connect to live electrical wiring. Connect Door Control Button Fasten securely with 6ABx1-1/2 screwsAttach the Emergency Release Rope and Handle Install the Light and the Lens32 explains how to use the door control RightWrong Permanent Wiring ConnectionsElectrical Requirements Facing the door from inside the garage Safety Reversing SystemAlternate Wall Mount Install the Safety Reversing SensorRight sides of the door Finger tighten the lock nuts Shown Actual SizeTrouble Shooting Fasten Door Bracket IIIIIII!!11111!111II!!l!ll!!!lLllllllllllllllI!l!l!l Alternative Connect Door Arm to TrolleySEC!ONA DoorS Oniy Hole AlignmentAssemble the Door Arm Adjustment Procedures for One-PieceDoorsOpen Door Adjustment Decrease UP limit Closed Door Adjustment Decrease Down limitPages 28 Adjustment Section Adjustment StepTo Adjust the Limits Adjust the UP and Down LimitsTest the Down close force Adjust the ForceHow and When to Adjust the ForcesMust reverse on striking the obstruction Adjustment StepTest The Safety Reversing Sensor Test the Safety Reverse SystemSchedule MaintenanceTo reduce the risk of severe injury or death to persons Care of Your OpenerLockout position Operation of Your Opener53000SRT Series Garage Door Openers Receiver and Remote Control ProgrammingSituation Having a Problem?Probable Cause and Solution Probable Cause & Solution Having a Problem?Installation Parts Repair PartsWie \Fr Opener Assembly PartsAccessories Index Product Type Part Number Model Number Part Description For the repair or replacement parts you needFor in-home major brand repair service Give the following information

139.53648SRT2, 139.53645SRT3, 139.53834SRT3, 139.53335SRT3, 139.53646SRT2 specifications

The Craftsman 139.53660SRT1, 139.53646SRT2, 139.53335SRT3, 139.53834SRT3, and 139.53645SRT3 are a series of advanced garage door openers designed for homeowners looking to enhance convenience, security, and functionality in their daily lives. Each model is equipped with cutting-edge technologies that streamline garage access while ensuring safety and durability.

One of the standout features across these models is the use of a powerful motor system, providing reliable performance for heavy garage doors. The motor's horsepower rating varies across the models, but all ensure consistent lifting strength and rapid opening and closing speeds, catering to different door weights and sizes.

In terms of security, these Craftsman models incorporate advanced encryption technologies, making unauthorized access nearly impossible. The security features include rolling code technology, which changes the access code each time the remote is used, thus preventing cloning and ensuring that only authorized users can operate the door.

These openers also prioritize ease of use. With their compatible smartphone app integration, users can remotely control and monitor their garage doors. Whether they are at home or away, users can receive notifications, check the status of their doors, and even open or close them at the touch of a button, adding an extra layer of convenience.

The installation process is also user-friendly, with many of these models featuring an easy-to-follow instruction manual. Homeowners can typically complete the installation themselves, saving time and money compared to hiring a professional. The durable construction of these openers ensures that they withstand the test of time, with many units equipped with weather-resistant materials that protect against rust and corrosion.

In addition to their functional features, the aesthetic designs of the Craftsman series are noteworthy. They fit seamlessly into a variety of garage styles, with a sleek finish that enhances overall garage appeal.

Overall, the Craftsman 139.53660SRT1, 139.53646SRT2, 139.53335SRT3, 139.53834SRT3, and 139.53645SRT3 garage door openers represent a blend of functionality, security, and user convenience. Homeowners seeking reliable, smart, and efficient solutions for managing their garage doors will find these models highly effective, offering peace of mind and ease of use in their everyday lives.
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