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LiftMaster 3245 Support Question

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Question posted by wgbolt55 on April 20th, 2012

Trouble Shoot

garage door closes and opens 2 inchs and will not fully open or stay closed

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Related LiftMaster 3245 Manual Pages

3255 Manual - Page 1

® GARAGE DOOR OPENER Models 3245 1/3 HP 3255 1/2 HP 3255-2 1/2 HP For Residential Use Only The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com Owner's Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation. ■ The door WILL NOT CLOSE unless...

3255 Manual - Page 2

... and Service 36 Warranty 36 INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe service provided it . Mechanical ...safety instructions 26 Using your garage door opener 26 Using the wall-mounted door control 27 To open the door manually 27 Care of your garage door and/or the garage door opener if you do not comply...

3255 Manual - Page 3

... locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid entanglement. If your garage door is balanced and is any ropes connected to garage door. • Complete the following test to make sure your door binds, sticks, or is out of balance. If balanced, it should stay in place, supported entirely by its...

3255 Manual - Page 4

Planning Identify the type and height of Garage Door Extension Spring OR Torsion Spring Wallmounted Door Control Access Door --- --- -- Motor Unit Vertical Centerline of your opener. SECTIONAL DOOR INSTALLATION Horizontal and vertical reinforcement is closed. Slack in chain tension is normal when garage door is needed for details. See page 12. You may be required....

3255 Manual - Page 5

... Inventory Your garage door opener is packaged in the foam. is missing, carefully check the packing material. Trolley One-Piece Rail Curved Door Arm Section Chain Pulley Bracket Door Bracket Safety ...contain the motor unit and all parts illustrated below . 3245 (1), 3255 (1), 3255-2 (2) LOCK LIGHT Multi-Function Door Control Panel : SECURITY ® Single-Button Remote Control ...

3255 Manual - Page 6

... BOLT Sprocket Cover Back Tab Slot Front Tab Slot Mounting Plate 6 Cut tape from moving garage door opener: • ALWAYS keep hand clear of sprocket while operating opener. • Securely attach sprocket cover BEFORE operating. To avoid SERIOUS damage to opener so one hole in rail and motor unit line up. • Thread one of...

3255 Manual - Page 7

... System). Door MUST reverse on properly balanced and lubricated garage door. Figure 1 Outer Nut To Tighten Outer Nut Lock Washer Inner Nut To Tighten Inner Nut • When the chain is open, do so. 8. Trolley Figure 2 Sprocket noise can result if chain is normal. This is too loose. Install garage door opener only on contact with the door closed.

3255 Manual - Page 8

... wall or ceiling), use the maximum height possible, or refer to page 9 for the top edge of inches exceeds the height available in the way; NOTE: If the total number of the door. An unbalanced garage door might not reverse when required. This height will provide travel as shown here and on page 9. 3. INSTALLATION...

3255 Manual - Page 10

Garage Door Ring Fastener Rail Header Bracket Clevis Pin 5/16"x2-3/4" Chain Pulley Bracket Rail Temporary Support HARDWARE SHOWN ACTUAL SIZE Clevis Pin 5/16"x2-3/4" 10 Ring Fastener Header Wall Header Bracket Chain Pulley Bracket INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on a temporary support to allow the...

3255 Manual - Page 11

... point if the ladder is not tall enough. • Open the door all the way and place a 2x4 on top section of Door 2x4 is convenient for setting an ideal door-to determine the correct mounting height from ceiling. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on its side is used to...

3255 Manual - Page 12

... of the motor unit to make sure the rail is not centered above the door). 7. Hanging brackets should be different. Remove the 2x4. If the door hits the rail, raise the header bracket. 8. Measure the distance from a falling garage door opener, fasten it SECURELY to the hanging brackets with rail grease. Grease the top and...

3255 Manual - Page 13

... the power and operate the opener at a minimum height of 5 feet (1.5 m) where small children cannot reach, and away from moving parts of door. • NEVER permit children to the two screw terminals on back of door control by gently prying at a minimum height of 5 feet (1.5 m), and away from a closing garage door. Strip 7/16" (11 mm) of...

3255 Manual - Page 14

...Then the lights will turn OFF. • Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is clear of persons and ...of the rope through the hole in the fully open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless garage doorway is connected. The light will turn...

3255 Manual - Page 15

... into the outlet you have, contact a qualified electrician to establish permanent wiring connection. • Garage door installation and wiring MUST be grounded. • Reinstall the cover. To make it fit outlet. Be sure the opener is required by your garage door opener has a grounding type plug with ALL local electrical and building codes. • NEVER use...

3255 Manual - Page 16

... light beam to the garage door opener BEFORE installing the safety reversing sensor. This required safety device MUST NOT be unobstructed. If it is NO HIGHER than 6" (15 cm) above floor Invisible Light Beam Protection Area Facing the door from a closing , the door will stop and reverse to full open position, and the opener lights will detect an...

3255 Manual - Page 17

... installed in one of three ways, as shown in Figure 1. If your door track will face each other across the garage door, with the beam no higher than 6" (15 cm) above the floor. INSTALLING THE BRACKETS Be sure power to the opener is needed, an extension bracket (see Accessories) to elevate sensor brackets so...

3255 Manual - Page 19

... using the two 1/4"-14x5/8" self-threading screws (Figure 2A). • Alternately, use on your door type as follows, depending on wood doors. Contact your garage door manufacturer for an opener installation door reinforcement kit. Figure 1 shows one piece of angle iron are not intended for the header bracket installation. For the vertical brace, 2 pieces of angle...

3255 Manual - Page 21

...opener at a 45° angle so that line up and join sections. Find two pairs of holes that the trolley release arm is horizontal. SECTIONAL DOORS ONLY • Make sure garage door...21 INSTALLATION STEP 12 Connect Door Arm to Trolley Follow instructions which apply to your door type as shown. - Trolley will re-engage automatically when opener is fully closed. Secure the connection with...

3255 Manual - Page 22

... Outer Trolley Door Arm Door Arm Connector Hole Emergency Release Handle Closed Door Inner Trolley Outer Trolley Correct Angle Door Arm Open Door Door with a ring fastener. • Run the opener through a complete travel cycle. Adjustment procedures, Figure 5: • On one-piece doors, before connecting the door arm to the fully closed from the fully open position (parallel...

3255 Manual - Page 26

... will blink for 10 seconds until the door starts to disengage trolley ONLY when garage door is misaligned, the door won't close . If fully open door falling rapidly and/or unexpectedly. 7. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY OPEN DOOR. 6. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 3). If opening , the door will stop . 4. Bulb size is activated. ALWAYS...