LiftMaster SW420 Support and Manuals

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Liftmaster Sw420 Gate
Liftmaster SW420 gate will open then will not close. Next time may work fine. Next time may not open...
(Posted by lcstoff 6 years ago)
How To Reset Remote For Sw420
how to reset remote for lift master sw420
(Posted by awang82747 9 years ago)
Controll Input For Sw420 Liftmaster
the led light is blinking 5 times indicating a limit fault, the manual states to clear to "control i...
(Posted by Anonymous-146071 9 years ago)

Popular LiftMaster SW420 Manual Pages

SW420 GL BOARD Manual - Page 1

GLCONTROLLER BOARD MODEL SW420 LIGHT DUTY SWING GATE OPERATOR 2 YEAR WARRANTY Serial located on electrical box cover) Installation Date INTENDED FOR PROFESSIONAL INSTALLATION ONLY. VISIT WWW.LIFTMASTER.COM TO LOCATE A PROFESSIONAL INSTALLING DEALER IN YOUR AREA. MODEL SW420 IS FOR VEHICULAR PASSAGE GATES ONLY AND IS NOT INTENDED FOR PEDESTRIAN PASSAGE GATE USE. THIS MANUAL IS TO BE LEFT ...
SW420 GL BOARD Manual - Page 2

... Limit Switch Adjustment 17 RPM Sensor (Hall Effect) Adjustment 18 Sequenced Access Management System (SAMS 19 Accessory Wiring 20-21 Control Board Illustration 22 Controller Programming and Features 23-24 Program Settings 25-26 TROUBLESHOOTING 27-28 MAINTENANCE Operator Maintenance 29 Single Phase Wiring Diagram 30 Repair Parts 31 Illustrated Parts 32 Safety Accessories for Secondary...
SW420 GL BOARD Manual - Page 4

... 4 RESIDENTIAL VEHICULAR GATE OPERATOR A vehicular gate operator (or system) intended for use in audio alarm. INDUSTRIAL/LIMITED ACCESS VEHICULAR GATE OPERATOR A vehicular gate operator (or system) intended for use in plain view on both the open and close directions of the gate within the operator. CLASS IV - Examples include sirens, horns or buzzers. This entrance is installed on...
SW420 GL BOARD Manual - Page 16

... are no obstructions to door travel. Operation is factory set at the NORMAL mode (Figure 1). Within 30 seconds, press and hold the "learn" button on the output contacts. All remote control codes are prohibited, except for each remote control in use of the battery. OPENING RECEIVER Connect Antenna Figure 3 OPEN RECEIVER Indicator Light Learn Button C P2 M 24V 12V...
SW420 GL BOARD Manual - Page 19

... of this point you have the fastest open times of the many gate operator types and the slide or swing gates allow the vehicle to close the barrier will automatically close and secure the gate. Use a loop system to terminal 3 on the control board to the normally open and allow you to effectively seal off the perimeter of the...
SW420 GL BOARD Manual - Page 20

... input functions to reverse a closing gate to instructions shipped with a loop detector and is on ). ADJUSTMENT ACCESSORY WIRING All inputs are intended for significant increase in a residential application or as a general open limit. We strongly recommend that may be found at terminals R1 and R2 located on swing gate operators. Residential Radio (single button) Input These terminals...
SW420 GL BOARD Manual - Page 25

... 3 seconds prior to optimize gate behavior for specific application. SL = Slide • SW = Swing RIGHT/LEFT OPERATION This switch selects the gate opening direction, to the left or to -Close feature works in motion" alarm feature. When switch is determined from the inside of fence looking out. Right/Left operation is ON, no settings can be changed. PROGRAM...
SW420 GL BOARD Manual - Page 28

TROUBLESHOOTING continued SYMPTOM Master or Second operator is not aligned/ adjusted correctly. Disconnect the gate from the operator and swing the gate open and close . Observe red LEDs D29 and D31. The Hall Effect Sensor is not functioning properly. Check the red input status LEDs, D11-D31, for proper programming. An installed accessory may be wired incorrectly or ...
SW420 GL BOARD Manual - Page 29

... that while at the site voltage readings be performed by a LiftMaster professional. 10. Keep the remote control away from the gate. ALL maintenance MUST be taken at the operator. Clean the operator as needed. 6. Have a qualified service person make repairs to adjust AVERTISSEMENT and retest the gate operator properly can increase the risk of SEVERE INJURY or DEATH: 1. MAINTENANCE...
SW420 GL BOARD Manual - Page 31

...Limit Collar 1 Hall Effect Assembly 1 Roll Pin 2 Belt 1 Molded Pulley 1 Spacer 1 Washer 7 Phillips Screw 10-32x2-1/2" 1 31 REPAIR PARTS Refer to the parts lists below for replacement parts available for your operator. prefix to the model number of your operator, certain components may not be added or removed from these lists. For example: SW420-33-11 (Operator) = K73SW420-33...
SW420 GL BOARD Manual - Page 36

... Support Group 6050 S. HOW TO ORDER REPAIR PARTS OUR LARGE SERVICE ORGANIZATION SPANS AMERICA FOR INSTALLATION AND SERVICE INFORMATION CALL OUR TOLL FREE NUMBER: 1-800-528-2806 www.liftmaster.com WHEN ORDERING REPAIR PARTS PLEASE SUPPLY THE FOLLOWING INFORMATION: PART NUMBER DESCRIPTION MODEL NUMBER ADDRESS ORDER TO: THE CHAMBERLAIN GROUP, INC. THIS LIMITED WARRANTY DOES NOT COVER ANY PROBLEMS...
SW420 S3 BOARD Manual - Page 1

Installation and Maintenance Instructions Swing Gate Operator Model SW420 Doc 01-G0610 Rev A
SW420 S3 BOARD Manual - Page 2

... General Information 4 Parts Supplied 4 Model Classifications 4 Specifications 5 Safety Information 6 Safety Instructions 6 Safety Precautions for Swing Gates and Ornamental "Grill Type" Gates 8 Preparing the Installation 9 Pre-Installation Check List 9 Wiring Specifications 9 Operator Preparation 10 Installation 11 Post Mount Installation 11 Pad Mount Installation 13 Pedestal Mount...
SW420 S3 BOARD Manual - Page 4

... 1 2 1 2 Table 1: Parts Supplied Model Classifications RESIDENTIAL VEHICULAR GATE OPERATOR - CLASS 1 A vehicular gate operator or system that is intended for use in which unauthorized access is included. RESTRICTED ACCESS VEHICULAR GATE OPERATOR - Unpack the cartons, checking for the standard model SW420. The long thin carton contains the two pieces of one to service the general public...
SW420 S3 BOARD Manual - Page 34

... Prepare to LiftMaster. FOR TECHNICAL SUPPORT TO ORDER REPAIR PARTS Call our toll free numbers: Call our toll free numbers: (800) 323-2276 (800) 998-9197 (800) 528-2806 (800) 998-9197 Installation and service information is protected by copyright and contain information proprietary to provide the following information when ordering repair parts: Part Number Part Name Model Number This...

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We have the following 2 documents available for the LiftMaster SW420:
  • SW420 GL BOARD Manual
  • SW420 S3 BOARD Manual
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