LIFTMASTER 1240 (01) PDF MANUAL

LIFTMASTER 1240 (01) PDF SUMMARY:

How do I tighten the chain?

To tighten the chain, turn the outer nut in the direction shown. As you turn the nut, keep the chain from twisting. When the chain is approximately 1/2" above the base of the T-rail at its midpoint, re-tighten the inner nut to secure the adjustment. Sprocket noise can result if the chain is either too loose or too tight. When installation is complete, you may notice some chain droop with the door closed. This is normal. If the chain returns to the position shown when the door is open, do not re-adjust the chain.

What should I do during future maintenance?

During future maintenance, ALWAYS pull the manual release handle to disconnect the trolley before adjusting the chain.

What are the important installation instructions I need to follow to reduce the risk of severe injury or death to persons?

1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS
2. Install only on a properly balanced and lubricated garage door. An improperly balanced door could cause severe injury or death.
3. After installing the opener, the door MUST reverse on contact with a 1-1/2" high object (or a 2×4 laid flat) placed on the floor.
4. Test the safety reverse system monthly.
5. NEVER permit children to operate the push button(s) or the remote control(s).
6. Keep remote controls away from children.
7. ALWAYS keep the moving door in sight and clear of persons and objects until it is completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
8. If possible, use the manual release only when the door is closed.
9. TEST the door opener monthly.
10. REVIEW the owner’s manual periodically.
11. An unbalanced garage door might not reverse when required, and someone under the door could be seriously injured or killed.
12. If your garage door binds, sticks, or is out of balance, call a professional garage door service.
13. Garage doors, door springs, cables, pulleys, brackets, and their hardware are under extreme tension and can cause serious injury or death. Do not try to loosen, move, or adjust them yourself!

How do I determine the header bracket location for a sectional door and one-piece door with a track?

• Open your door to the highest point of travel. Draw an intersecting horizontal line on the header wall 2" above the high point. This height will provide travel clearance for the top edge of the door.
• Close the door and mark the inside vertical centerline of the garage door.
• Extend the line onto the header wall above the door.
• Remember, you can fasten the header bracket within 2 feet to the left or right of the door center only if a torsion spring or center bearing plate is in the way; or you can attach it to the ceiling when clearance is minimal.
• If you need to install the header bracket on a 2×4 (on the wall or ceiling), use lag screws (not supplied) to securely fasten the 2×4 to structural supports.

What are the important safety instructions to consider when determining the header bracket location?

• If the header bracket is not rigidly fastened to a structural support on the header wall or ceiling, the safety reverse system may not work properly. The door might not reverse when required and could cause serious injury or death.
• The garage door springs, cables, pulleys, brackets, and their hardware are under extreme tension. Do not attempt to loosen, move, or adjust them yourself. Serious personal injury or death could result. Call a professional for garage door service.

How do I determine the header bracket location for a one-piece door without a track?

• Close the door and mark the inside vertical centerline of your garage door. Extend the line onto the header wall above the door.
• If headroom clearance is minimal, you can install the header bracket on the ceiling.
• If you need to install the header bracket on a 2×4 (on the wall or ceiling), use lag screws (not supplied) to securely fasten the 2×4 to structural supports.

How do I fasten the header bracket to the wall?

• Center the bracket on the vertical guideline with the bottom edge of the bracket on the horizontal line (with the arrow pointing toward the ceiling).
• Mark either set of bracket holes (do not use the holes designated for ceiling mount). Drill 3/16" pilot holes and fasten the bracket securely to a structural support with the hardware provided.

How do I fasten the header bracket to the ceiling?

• Extend the vertical guideline onto the ceiling.
• Center the bracket on the vertical mark, no more than 6" from the header wall. Drill 3/16" pilot holes and fasten the bracket securely with lag screws (not supplied).

How do I attach the T-rail to the header bracket?

• Position the opener on the garage floor below the header bracket. Use packing material as a protective base. If the door spring is in the way, you’ll need help. Have someone hold the opener securely on a temporary support to allow the T-rail to clear the spring.
• Position the chain pulley bracket against the header bracket.
• Align the bracket holes and join them with a clevis pin.
• Insert a ring fastener to secure.

How do I position the opener for a sectional door and one-piece door with a track?

To prevent damage to steel, aluminum, fiberglass, or glass panel doors, do not rest the opener on the door without using a 2×4. A 2×4 laid flat is convenient for setting an ideal door-to-T-rail distance.

• Raise the opener onto a stepladder. You will need help at this point if the ladder is not tall enough.
• Open the door all the way and place a 2×4 laid flat on the top section beneath the T-rail.
• If the top panel hits the trolley when you raise the door, pull down on the trolley release arm to disconnect the inner and outer sections. The trolley can remain disconnected until Step 12 is completed.

How do I hang the opener?

Two representative installations are shown. Yours may be different. Hanging brackets should be angled to provide rigid support. On finished ceilings, attach a sturdy metal bracket to structural supports before installing the opener. The bracket and fastening hardware are not supplied.

• Measure the distance from each side of the opener to the structural support.
• Cut both pieces of the hanging bracket to the required lengths.
• Drill 3/16" pilot holes in the structural supports.
• Attach one end of each bracket to a support with 5/16"x1-7/8" lag screws.
• Fasten the opener to the hanging brackets with 5/16"-18×7/8" hex screws, lock washers, and nuts.
• Check to make sure the T-rail is centered over the door (or in line with the header bracket if the bracket is not centered above the door).
• Remove the 2×4. Operate the door manually. If the door hits the rail, raise the header bracket.

What safety precaution should I take when hanging the opener?

The opener could fall and injure someone if it is not properly secured. Fasten the opener securely to the structural supports of the garage.

What should I do before installing the door control?

Grease the top and underside of the rail surface where the trolley slides. A tube of grease is supplied.

Where should I install the door control and what are the safety precautions to keep in mind?

Children operating or playing with a garage door opener can injure themselves or others. The garage door could close and cause serious injury or death.

• Install the Door Control (or any additional push buttons) out of the reach of children and away from all moving parts of the door and door hardware but where the garage door is visible.
• Do not allow children to operate the push button(s) or the remote control transmitter(s).
• A moving garage door could injure someone under it. Activate the opener only when the door is properly adjusted, you can see it clearly, and there are no obstructions to door travel.

How do I install the lighted door control button and the multi-function door control panel?

• Strip 1/4" of insulation from one end of the bell wire; connect the wire to the two screw terminals on the back of the door control by color: white to 2 and white/red to 1.
• Locate the door control within sight of the door at a minimum height of 5 feet where small children cannot reach it, and away from all moving parts of the door and door hardware.
• Fasten the Lighted Door Control Button securely with 6ABx1-1/2" screws. The Multi-Function Door Control Panel uses 6ABx1" screws. If installing into drywall, drill 5/32" holes and use the anchors provided.
• Run the bell wire up the wall and across the ceiling to the opener. Use insulated staples to secure the wire in several places. Be careful not to pierce the wire with a staple, thereby resulting in a short.
• Receiver terminal screws and the antenna are located on the back panel of the opener. Position the antenna wire as shown.
• Connect the bell wire to the opener terminal screws: white to 2 and white/red to 1.
• Remember to affix the User Safety Instruction label to the wall near the Door Control and the Maintenance Instruction label in a prominent location on the inside of the garage door.

What do I do if the label adhesive will not adhere to my garage wall surface?

If the label adhesive will not adhere to your garage wall surface (or becomes loose over time), use tacks to secure the label alongside the control button.

What should I NOT do when installing the door control?

Do NOT connect the power and operate the opener at this time. The trolley will travel to the full open position but will not return to the close position until the sensor beam is connected and properly aligned.

How do I install the light(s)?

• Install a 75-watt maximum light bulb in each socket. The light(s) will turn ON and remain lit for approximately 4-1/2 minutes when power is connected. Then the light(s) will turn OFF.
• If the bulbs burn out prematurely due to vibration, replace them with a standard-neck “Garage Door Opener” bulb.

How do I install the lenses for Models 1260, 1260-266, 1260-166, 1250, and 1250-266?

• Slide each lens into the guides. Snap the bottom tabs into the lens slots.
• Reverse the procedure to remove the lenses.

How do I install the lens for all other models except the 1240?

• Locate and loosen (approximately 1/8") the two screws near the top of the opener front panel.
• Position the lens against the panel with the slotted tabs directly below the screws.
• Slide the lens up to seat the tabs behind the screws. Snap the bottom tabs of the lens into the panel slots. Retighten the top panel screws to secure the lens.

What are the safety precautions when attaching the manual release rope and handle?

Do not use the red handle to pull the door open or closed. The rope knot could become untied, and you could fall. Use the manual release only to disengage the trolley and, if possible, only when the door is closed.

What are the electrical requirements for the garage door opener?

To reduce the risk of electric shock, your garage door opener has a grounding-type plug with a third grounding pin. This plug will only fit into a grounding-type outlet. If the plug doesn’t fit into the outlet you have, contact a qualified electrician to install the proper outlet.

What are the precautions I need to take regarding the plug and electrical connections?

To prevent electrocution or fire, installation and wiring must be in compliance with local electrical and building codes. To avoid installation difficulties, do not run the opener at this time.

• Do not change the plug in any way.
• Do not use a 2-wire adapter.
• Do not use an extension cord.

How do I make a permanent wiring connection?

If permanent wiring is required by your local code, refer to the following procedure:

• To make a permanent connection through the 7/8" diameter hole in the top of the opener (according to local code), remove the opener cover screws and set the cover aside.

What safety precaution should I take before making a permanent wiring connection?

To prevent electrocution, remove power from the garage door opener and from the circuit you plan to use for the permanent connection.

How do I test my garage door for sticking, binding, and balance?

Before you begin, complete the following test to make sure your door is balanced and is not sticking or binding:

• Lift the door about halfway. Release the door. It should stay in place, supported entirely by its springs.
• Raise and lower the door to see if there is any binding or sticking.

What safety precaution should I keep in mind when testing the garage door?

An unbalanced garage door might not reverse when required, and someone under the door could be seriously injured or killed. If your garage door binds, sticks, or is out of balance, call for professional garage door service. Garage doors, door springs, cables, pulleys, brackets, and their hardware are under extreme tension and can cause serious injury or death. Do not try to loosen, move, or adjust them yourself!

What safety precaution should I keep in mind regarding ropes connected to the door?

Ropes left on a garage door could cause someone to become entangled and killed. Remove all ropes connected to the door before installing and operating the opener.

What should I do about garage door locks before installing and operating the opener?

To avoid damage to the garage door and opener, disable locks before installing and operating the opener. Use a wood screw or nail to hold locks in the “open” (unlocked) position.

What voltage should I operate the opener at?

Operation at other than 120V 60 Hz will cause opener malfunction and damage.

How do I identify the type and height of my door and any special conditions that exist?

Identify the type and height of your door and any special conditions that exist and any additional materials that may be required by referring to the lists in the PDF.

What should I do before beginning the installation?

Before you begin, survey your garage area to see whether any of the conditions below apply to your installation. Based on your particular requirements, there are several installation steps which might call for materials and/or hardware not included in the carton.

• Look at the wall or ceiling above the garage door. The header bracket must be securely fastened to structural supports.
• Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware (not supplied) may be required.
• Depending on garage construction, wood blocks may need to be securely fastened to mounting locations before sensors are installed.

What precaution should I take when attaching the T-rail to the opener for Models 1260, 1260-266, 1255, 1255-266, 1250, 1250-266, 1245, 1245-266, and 1240?

To fasten the rail, use only those screws mounted in the top of the opener. Any other screws will cause serious damage to the opener.

How do I attach the T-rail to the opener for Models 1260, 1260-266, 1255, 1255-266, 1250, 1250-266, 1245, 1245-266, and 1240?

• Remove the two washered screws mounted on top of the opener.
• Align the T-rail at an angle with the opener so one hole in the T-rail and opener line up.
• Thread one of the washered screws part way in. Use only these screws! Use of any other screws will cause serious damage to the door opener.
• Align the T-rail and styrofoam over the opener sprocket. Cut the tape from the T-rail, chain, and styrofoam.
• REMOVE STYROFOAM.
• Position the chain over the opener sprocket. If necessary, loosen the outer nut on the trolley to obtain more chain slack.
• Insert the second washered screw. CAUTION: Use only the screw previously removed from the opener!
• Tighten both screws securely through the T-rail into the opener.

What safety precautions should I take when attaching the chain to the sprocket and installing the sprocket cover for Models 1260, 1260-266, 1255, 1255-266, 1250, 1250-266, 1245, 1245-266, and 1240?

Serious injury can result if fingers become entangled in the moving opener sprocket. Attach the sprocket cover securely. Never operate the opener while your hand is near the opener sprocket.

How do I install the sprocket cover?

• Place the opener on packing material to protect the cover.
• Insert the back tab in the opener slot. Squeeze the cover slightly and insert the front tab in the slot on the mounting plate.

How do I attach the T-rail to the opener for Models 1256 and 1246?

• Remove the (2) 5/16"-18×1/2" washered screws mounted in the top of the opener.
• Align the T-rail and styrofoam over the opener sprocket.
• Cut the tape from the T-rail, chain, and styrofoam. Remove the styrofoam and pull the chain back (away from the mounting plate).
• Fasten the rail with the (2) washered screws previously removed. Tighten securely.

What precaution should I take when attaching the T-rail to the opener for Models 1256 and 1246?

To fasten the rail, use only those screws mounted in the top of the opener. Any other screws will cause serious damage to the opener.

How do I attach the chain spreader and re-install the chain for Models 1256 and 1246?

• Line up the holes in the chain spreader with the holes in the opener as shown. The slot in the chain spreader must fit over the T-rail flange.
• Securely fasten the chain spreader with the hardware provided.
• Remove the trolley threaded shaft from the trolley by loosening the inner nut and lock washer.
• Guide the chain around the selected groove in the chain spreader (to engage either the 8-tooth sprocket or the 6-tooth sprocket).
• Spin the inner nut and lock washer down the threaded shaft, away from the trolley.

What safety precautions should I take when attaching the chain spreader and re-installing the chain for Models 1256 and 1246?

Serious injury can result if fingers become entangled in the moving opener sprocket. Attach the sprocket cover securely. Never operate the opener while your hand is near the opener sprocket.

What must be done before the garage door opener will move in the down direction? The safety reversing sensor must be connected and aligned correctly.

What could happen without a properly working safety reversing sensor? Persons (particularly children) could be injured or killed by a closing garage door.

At what height should the safety reversing sensor be installed? To protect small children, install the safety reversing sensor so that the beam will be no higher than 4"-6" above the garage floor.

When should you disconnect power to the garage door opener? Disconnect power to the garage door opener before installing the safety reversing sensor.

Where are the limit adjustment screws located? Limit adjustment screws are located on the left side panel.

What do limit adjustment settings regulate? Limit adjustment settings regulate the points at which the door will stop when moving up or down.

When will the door stop in the up direction? The door will stop in the up direction if anything interferes with door travel.

When will the door reverse in the down direction? The door will reverse in the down direction if anything interferes with the door travel (including binding or unbalanced doors).

How do you operate the opener? To operate the opener, press the Door Control button/push bar.

What should you do after running the opener through a complete travel cycle? Run the opener through a complete travel cycle.

• Does the door open and close completely?
• Does the door stay closed and not reverse unintentionally when fully closed?

When are limit adjustments necessary? If your door passes both of these tests, no limit adjustments are necessary.

What could happen due to improper adjustment of the travel limits? Improper adjustment of the travel limits will interfere with the proper operation of the safety reverse system. The door might not reverse when required and could seriously injure or kill someone under it.

What should be done following all adjustments to the travel limits? Test the safety reverse system following all adjustments to the travel limits.

Where are force adjustment controls located? Force adjustment controls are located on the back panel of the opener.

What do force adjustment settings regulate? Force adjustment settings regulate the amount of power required to open and close the door.

When will the door stop in the up direction? The door will stop in the up direction if anything interferes with its travel.

When will the door reverse in the down direction? The door will reverse in the down direction if anything interferes with its travel (including binding or unbalanced doors).

What may happen if the forces are set too light? If the forces are set too light, door travel may be interrupted by nuisance reversals in the down direction and stops in the up direction.

Why might occasional adjustment of forces be needed? Weather conditions can affect the door movement, so occasional adjustment may be needed.

What is the maximum force adjustment range? The maximum force adjustment range is 260 degrees, about 3/4 of a complete turn.

What should you not do to the force adjustment controls? Do not force controls beyond that point.

What should you use to turn force adjustment controls? Turn force adjustment controls with a screwdriver.

How do you test the DOWN (close) force? Grasp the door bottom when the door is about halfway through DOWN (close) travel. The door should reverse. (Reversal halfway through down travel does not guarantee reversal on a two-inch obstruction.)

What should you do if the door is hard to hold or doesn’t reverse? If the door is hard to hold or doesn’t reverse, decrease the DOWN (close) force by turning the control counterclockwise.

What should you make until the door reverses normally? Make 10 degree turn adjustments until the door reverses normally.

What should you do after each force adjustment? After each adjustment, run the opener through a complete cycle.

How do you test the UP (open) force? Grasp the door bottom when the door is about halfway through UP (open) travel. The door should stop.

What should you do if the door is hard to hold or doesn’t stop? If the door is hard to hold or doesn’t stop, decrease UP (open) force by turning the control counterclockwise.

What should you make until the door stops easily? Make 10 degree turn adjustments until the door stops easily.

What should you do if the door doesn’t open at least 5 feet? Increase UP (Open) force by turning the control clockwise.

What kind of adjustments should you make until the door opens completely? Make 10 degree turn adjustments until the door opens completely.

What should you readjust if necessary? Re-adjust the UP limit if necessary.

What should you do if the door reverses during the down (close) cycle and the opener lights aren’t flashing? Increase DOWN (close) force by turning the control clockwise.

What should you make until the door completes a close cycle? Make 10 degree turn adjustments until the door completes a close cycle.

What should you not increase the force beyond? Do not increase the force beyond the minimum amount required to close the door.

How do you test the safety reverse system?

• Place a one-inch board (or a 2×4 laid flat) on the floor, centered under the garage door.
• Operate the door in the down direction. The door must reverse on striking the obstruction.

What should you do if the door stops on the obstruction? If the door stops on the obstruction, it is not traveling far enough in the down direction.

• Increase the DOWN limit by turning the DOWN

How often should you test and adjust the safety reverse system? Repeat this test once a month and adjust as needed.

How do you test the safety reversing sensor?

• Press the remote control push button to open the door.
• Place the opener carton in the path of the door.
• Press the remote control push button to close the door. The door will not move more than an inch, and the opener light(s) will flash.

When will the garage door opener not close from a remote? The garage door opener will not close from a remote if the indicator light in either sensor is off, alerting you to the fact that the sensor is misaligned or obstructed.

How can the garage door be closed if the sensor is misaligned or obstructed? The garage door can be closed by pressing and holding the door control button/push bar until down travel is completed.

When is professional service required? Professional service is required if the opener closes the door when the safety reversing sensor is obstructed.

When could someone be seriously injured or killed if trapped by a closing garage door? Without a properly working safety reversing sensor, persons (particularly children) could be seriously injured or killed if trapped by a closing garage door.

How often should you repeat the safety reversing sensor test? Repeat this test once a month.

What must the opener learn the code of? The opener must learn the code of any new remote control.

When will the green battery test light glow and the opener operate? The green battery test light will glow and the opener will operate when the remote control is activated.

What may cause some minor changes in door operation requiring some readjustment? Weather conditions may cause some minor changes in door operation requiring some readjustment.

How do you reduce the risk of severe injury or death to persons?

1. READ AND FOLLOW ALL INSTRUCTIONS.
2. Do not permit children either to operate or to play with the opener. Keep remote control in a location inaccessible to children.
3. Operate opener only when the door is in full view and free from any obstruction. Keep the door in sight until it is completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
4. Check safety reversal system monthly. The garage door MUST reverse on contact with a one-inch object (or a 2×4 board laid flat) placed on the floor. If an adjustment is made to either the force or the limit of travel, both adjustments may be needed and the safety reversal system must be checked. Failure to properly adjust the opener may result in severe injury or death.
5. If possible, use the manual release only when the door is in a closed position. Caution should be taken whenever the disconnect cord is actuated with the door open. Weak or broken springs may cause the door to fall rapidly, causing injury or death to persons.
6. KEEP GARAGE DOORS PROPERLY BALANCED. An improperly balanced door may not reverse when required and could result in severe injury or death. Repairs to cables, spring assemblies and other hardware must be made by a professional garage door person.
7. Disconnect the electric power from the garage door opener before making any repairs or removing the covers.
8. SAVE THESE INSTRUCTIONS.

How do you open the door manually? The door should be fully closed if possible. Pull down on the manual release handle and lift the door manually.

How do you reconnect the door to the opener? To reconnect the door to the opener, press the Door Control button/push bar.

How do you activate the opener? Activate the opener with any of the following devices:

1. The Remote Control Transmitter. Hold push button down until the door starts to move.
2. The Door Control. Hold button/push bar down until the door starts to move.
3. The Outside Keylock or Keyless Entry. (See Accessories)

What will happen when the opener is activated?

1. If open, the door will close. If closed, the door will open.
2. If closing, the door will reverse.
3. If opening, the door will stop (allowing space for entry and exit of pets and for fresh air).
4. If the door has been stopped in a partially open position, it will close.
5. If obstructed while closing, the door will reverse.
6. If obstructed while opening, the door will stop.
7. The garage door will reverse in the closing cycle when the invisible beam is broken. If fully open, the door will not close when the beam is broken. The sensor has no effect in the opening cycle.

When will the door not close from any remote control transmitter? If the sensor is not installed, or is not aligned correctly, the door won’t close from any remote control transmitter.

How can you close the door with the Door Control, the Outside Keylock, or the Keyless Entry if the sensor is not installed or not aligned correctly? You can close the door with the Door Control, the Outside Keylock, or the Keyless Entry, however, if you press and hold the button/push bar until down travel is complete.

What will happen if you release the button/push bar too soon? If you release the button/push bar too soon, the door will reverse.

How long will the opener lights blink when the safety reversing sensor causes the door to reverse? The opener lights will blink for 5 seconds when the safety reversing sensor causes the door to reverse.

When will opener lights turn on? Opener Lights will turn on under the following conditions:

• When the opener is initially plugged in
• When the power is interrupted
• When the opener is activated

When will opener lights turn off? They will turn off automatically after 4-1/2 minutes or provide constant light when the Light feature is activated.

What is the maximum bulb size? Bulb size is 75 watts maximum.

What does the lockout feature prevent? The lockout feature prevents the trolley from reconnecting automatically.

How do you use the manual release handle? Pull the manual release handle down and back (toward the opener).

What can be done after pulling the manual release handle? The door can then be raised and lowered manually as often as necessary.

How do you disengage the Lockout Feature? To disengage the Lockout Feature, pull the manual handle straight down.

When will the trolley reconnect? The trolley will reconnect on the next UP or

What could happen if the springs are weak or broken? Weak or broken springs could allow an open door to fall (either rapidly or unexpectedly), resulting in serious injury, death or property damage.

When should you use the manual release rope and handle? If possible, use the manual release rope and handle only when the door is fully closed.

What could happen when children operate or play with a garage door opener? Children operating or playing with a garage door opener can injure themselves or others. The garage door could close and cause serious injury or death.

What should you not allow children to operate? Do not allow children to operate the door control(s) or remote control transmitter(s).

What could happen to someone under a moving garage door? A moving garage door could injure or kill someone under it.

When should you activate the opener? Activate the opener only when you can see the door clearly, it is free of obstructions, and is properly adjusted.

How do you add a remote?

1. Press and hold the remote push button.
2. Then press and release the “Smart” button on the back panel of the opener. The opener lights on the panel will flash once.
3. Release the remote push button.

When will the opener operate? Now the opener will operate when the remote control push button is pressed.

What happens if you release the remote control push button before the opener lights flash? If you release the remote control push button before the opener lights flash, the opener will not accept the code.

How do you erase all remote control codes?

• Press and hold the “Smart” button on the opener panel until the indicator light turns off (about 6 seconds). All the codes the opener has learned will be erased.
• To reprogram, repeat Steps 1 – 3 for each remote control in use.

When will the door open? The door will open when you press the remote control push button.

What will your “Smart” garage door opener operate with? Your “Smart” garage door opener will operate with:

• up to twelve “Smart” remote control transmitters (with green indicator lights),
• a Keyless Entry System, and
• code switch remote controls with red indicator lights.

What should you follow to program your opener to match any additional remotes you may purchase? Follow the instructions below to program your opener to match any additional remotes you may purchase.

What is prohibited to comply with FCC rules? NOTICE: To comply with FCC rules, adjustment or modification of this receiver and/or transmitter are prohibited, except for changing the code setting or replacing the transmitter battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.

What should you do if the opener doesn’t operate from either the door control or the remote control?

1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn’t light, check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.)
2. Have you disabled all door locks? Review installation instruction warnings.
3. Is there a build-up of ice or snow under the door? The door may be frozen to the ground. Remove any restriction.
4. The garage door spring may be broken. Have it replaced.
5. Repeated operation may have tripped the overload protector in the motor. Wait 15 minutes. Try again.

What should you do if the opener operates from the remote control, but not from the door control?

1. Is the door control push bar lit? If not, Remove the bell wire from the opener terminal screws. Short the red and white terminals by touching both terminals at the same time with a piece of wire. If the opener runs, check for a faulty wire connection at the door control, a short under the staples, or a broken wire.
2. Are the wiring connections correct? Review Step 6.

What should you do if the door operates from the door control, but not from the remote control?

1. If your model has the Lock feature, turn it off.
2. Is the wall push button flashing? Your opener needs to re-learn a remote control code. Refer to instructions on the opener panel.
3. Does the battery test light glow when the remote control push button is pressed? If not, replace the battery.
4. Program the receiver to match the remote control code.
5. Repeat the receiver programming procedure with all remote controls.

What should you do if the remote control has short range?

1. Check the battery test light. If the light is dim, replace the battery.
2. Change the location of the remote control in your car.
3. Check to be sure the antenna on the side or back panel of the opener extends fully downward.
4. Some installations may have shorter range due to a metal door, foil backed insulation, or metal garage siding.

What should you do if the opener noise is disturbing in living quarters of the home? If operational noise is a problem because of proximity of the opener to the living quarters, the Vibration Isolator Kit 41A3263 can be installed. This kit was designed to minimize vibration to the house and is easy to install.

What should you do if the door reverses for no apparent reason and opener lights don’t blink?

1. Is something obstructing the door? Pull the manual 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.
4. If the door reverses in the fully closed position, decrease the travel limits. 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.

What should you do if the door reverses for no apparent reason and the opener lights blink for 5 seconds after reversing? Check the safety reversing sensor. Remove any obstruction or align the receiving eye.

What should you do if the opener lights don’t turn on? Replace the light bulbs (75 watts maximum). Use a standard neck garage door opener bulb if regular bulb burns out.

What should you do if the opener lights don’t turn off? Is the Light feature on? Turn it off.

What should you do if the opener strains or maximum force is needed to operate the door? The door may be out of balance or the springs are broken. Close the door and use the manual 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.

What should you do if the opener motor hums briefly, then won’t work?

1. The garage door springs are broken. See above.
2. If the problem occurs on the first operation of the opener, the door may be locked. Disable the door lock. 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.

What should you do if the opener won’t operate due to power failure?

1. Use the manual release to disconnect the trolley. The door can be opened and closed manually. When the power is restored, press the door control push bar and trolley will automatically reconnect (unless the trolley is in lockout position.).
2. The Outside Quick Release accessory (for use on garages with no service door) disconnects the trolley from outside the garage in case of power failure.

What should you do if the chain droops or sags? It is normal for the chain to droop slightly in the closed door position. Use the manual 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.

What should you do if the door opens but won’t close? Check the safety reversing sensor. Remove any obstruction or align the receiving eye.

What should you check if the opener lights blink? If the opener lights blink, check the safety reversing sensor.

What should you check if the opener lights do not blink and it is a new installation? If the opener lights do not blink and it is a new installation, check the down force. Repeat the safety reverse test after the adjustment is complete.

What is the limited warranty on the motor for Model 1260, 1260-266? The motor is fully warranted for the lifetime of the product to the first-time purchaser.

What is the limited warranty on the motor for Models 1256, 1255, 1255-266 & 1255-2K? The motor is warranted to be free from any defect in materials and/or workmanship for a period of 48 full months (4 years) from the date of purchase.

What is the limited warranty on the motor for Model 1250? The motor is warranted to be free from any defect in materials and/or workmanship for a period of 36 full months (3 years) from the date of purchase.

What is the limited warranty on the motor for Models 1246, 1245? The motor is warranted to be free from any defect in materials and/or workmanship for a period of 24 full months (2 years) from the date of purchase.

What is the limited warranty on the motor for Model 1240? The motor is warranted to be free from any defect in materials and/or workmanship for a period of 12 full months (1 year) from the date of purchase.

What is not covered by the warranty? This warranty does not cover non-defect damage, damage caused by unreasonable use (including abuse, failure to provide reasonable and necessary maintenance, or any alterations to the product), labor charges for dismantling or reinstalling of a repaired

What is the toll free number for Lift-Master Service? 1-800-528-9131

What are the Lift-Master Service hours? HOURS: (Mountain Std. Time) 6:00 A.M. TO 6:00 P.M. – Monday through Friday 7:00 A.M. TO 3:00 P.M. – Saturday Closed Sunday

Where can you find professional installation, parts and service? For professional installation, parts and service, contact your local LIFT-MASTER/ CHAMBERLAIN dealer. Look for him in the Yellow Pages, or call our Service number for a list of dealers in your area.

What information should you always give when ordering repair parts? WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION:

• PART NUMBER
• PART NAME
• MODEL NUMBER

Where should you address orders? ADDRESS ORDERS TO: THE CHAMBERLAIN GROUP, INC. Parts and Service Department 2301 N. Forbes Boulevard, Suite 104 Tucson, Arizona 85745

What is the service information toll free number? 1-800-528-9131