LA400 Manual
Page 2
... WIRING Connect the Gate Operator (Gate 1) to the Control Box Set the Bipart Delay (Model LA400-S Only) Connect the Gate Operator (Gate 2) to the Control Box (Model LA400-S Only) Junction Box (Model LA400-S Only) Connect Transformer to Control Board Earth Ground Rod Installation (Optional) Connect Batteries 1-6 1...for Secondary Entrapment Protection OPERATION AND MAINTENANCE Reset Button Remote Control Manual Release Maintenance TROUBLESHOOTING Basic Control Board Layout Wiring Diagram Diagnostic Codes Troubleshooting Chart REPAIR PARTS Control Box Gate Operator Arm How to Order Repair Parts ...
... WIRING Connect the Gate Operator (Gate 1) to the Control Box Set the Bipart Delay (Model LA400-S Only) Connect the Gate Operator (Gate 2) to the Control Box (Model LA400-S Only) Junction Box (Model LA400-S Only) Connect Transformer to Control Board Earth Ground Rod Installation (Optional) Connect Batteries 1-6 1...for Secondary Entrapment Protection OPERATION AND MAINTENANCE Reset Button Remote Control Manual Release Maintenance TROUBLESHOOTING Basic Control Board Layout Wiring Diagram Diagnostic Codes Troubleshooting Chart REPAIR PARTS Control Box Gate Operator Arm How to Order Repair Parts ...
LA400 Manual
Page 7
.... • Disconnect ALL power before performing ANY maintenance. • ALL maintenance MUST be performed by a LiftMaster professional. • SAVE THESE INSTRUCTIONS. Pedestrians MUST use only LiftMaster part #K74-30762 for vehicles ONLY. To avoid SERIOUS personal INJURY or DEATH from the gate. Have a...INJURY or DEATH. • Use the emergency release ONLY when the gate is for replacement batteries. Read the ownerʼs manual. TROUBLESHOOTING To protect against fire: • Replace ONLY with a rigid object or stop when an object activates the non-contact sensors. Keep...
.... • Disconnect ALL power before performing ANY maintenance. • ALL maintenance MUST be performed by a LiftMaster professional. • SAVE THESE INSTRUCTIONS. Pedestrians MUST use only LiftMaster part #K74-30762 for vehicles ONLY. To avoid SERIOUS personal INJURY or DEATH from the gate. Have a...INJURY or DEATH. • Use the emergency release ONLY when the gate is for replacement batteries. Read the ownerʼs manual. TROUBLESHOOTING To protect against fire: • Replace ONLY with a rigid object or stop when an object activates the non-contact sensors. Keep...
LA400 Manual
Page 31
... will blink). PROGRAM CLOSE 6 Press the Gate 1 left button to move gate to open position and the fully closed position. If the problem continues, see Troubleshooting section.) Test the limits by turning the release lever clockwise 180°, then turning the key clockwise 180°. LIMIT LIMIT 5 When gate is made...
... will blink). PROGRAM CLOSE 6 Press the Gate 1 left button to move gate to open position and the fully closed position. If the problem continues, see Troubleshooting section.) Test the limits by turning the release lever clockwise 180°, then turning the key clockwise 180°. LIMIT LIMIT 5 When gate is made...
LA400 Manual
Page 32
... button to move the right operator into the OPEN position. 6 SET CLOSE LIMIT LE LIMITS Press the LEARN LIMITS button. If the problem continues, see Troubleshooting section.) Test the limits by pressing the SBC to close the gate. 31 SET CLOSE LIMIT LE LIMIT GATE 2 FORCE 8 Press the GATE 1 left button...
... button to move the right operator into the OPEN position. 6 SET CLOSE LIMIT LE LIMITS Press the LEARN LIMITS button. If the problem continues, see Troubleshooting section.) Test the limits by pressing the SBC to close the gate. 31 SET CLOSE LIMIT LE LIMIT GATE 2 FORCE 8 Press the GATE 1 left button...
LA400 Manual
Page 33
... other gate; SET CLOSE LIMIT LE LIMIT GATE 2 8 Press the GATE 1 right button to open and close the right operator. If the problem continues, see Troubleshooting section.) Test the limits by turning the release lever clockwise 180°, then turning the key clockwise 180°. Programming times-out automatically after 60...
... other gate; SET CLOSE LIMIT LE LIMIT GATE 2 8 Press the GATE 1 right button to open and close the right operator. If the problem continues, see Troubleshooting section.) Test the limits by turning the release lever clockwise 180°, then turning the key clockwise 180°. Programming times-out automatically after 60...
LA400 Manual
Page 42
Jog Learn Limit Single Button Force Bipart Delay Timer-to-Close Receiver Program Remote Gate 1 - P1 D6 O1 2 3 4 5 N TROUBLESHOOTING » BASIC CONTROL BOARD LAYOUT BASIC CONTROL BOARD LAYOUT 20 19 17 26 1 14 13 18 12 11* 10 21 P2 R223 ALARM NO C MAGLOCK ...
Jog Learn Limit Single Button Force Bipart Delay Timer-to-Close Receiver Program Remote Gate 1 - P1 D6 O1 2 3 4 5 N TROUBLESHOOTING » BASIC CONTROL BOARD LAYOUT BASIC CONTROL BOARD LAYOUT 20 19 17 26 1 14 13 18 12 11* 10 21 P2 R223 ALARM NO C MAGLOCK ...
LA400 Manual
Page 43
... 1 ANTENNA CONNECTION 13. DIP SWITCH, S1 18. SBC (SINGLE BUTTON CONTROL) 23. FORCE SET 24. CONTROL INPUTS/EXIT LOOP 8. MAGLOCK/SOLENOID OUTPUT 14. Reset Limits TROUBLESHOOTING » WIRING DIAGRAM + DIAGNOSTIC CODES To protect against fire: • Replace ONLY with fuse of same type and rating. For continued protection against fire and...
... 1 ANTENNA CONNECTION 13. DIP SWITCH, S1 18. SBC (SINGLE BUTTON CONTROL) 23. FORCE SET 24. CONTROL INPUTS/EXIT LOOP 8. MAGLOCK/SOLENOID OUTPUT 14. Reset Limits TROUBLESHOOTING » WIRING DIAGRAM + DIAGNOSTIC CODES To protect against fire: • Replace ONLY with fuse of same type and rating. For continued protection against fire and...
LA400 Manual
Page 44
... chart on control board to arm, replace wire if needed. Voltage must be connected. See Timer-to-Close section for adjustment instructions. Check for instructions. TROUBLESHOOTING » TROUBLESHOOTING CHART FAULT OPERATOR IS DEAD No LED lights are on . 3) Loose/disconnected wires. 4) Bad accessory device FIX Battery must be >23 V, AC or needs...
... chart on control board to arm, replace wire if needed. Voltage must be connected. See Timer-to-Close section for adjustment instructions. Check for instructions. TROUBLESHOOTING » TROUBLESHOOTING CHART FAULT OPERATOR IS DEAD No LED lights are on . 3) Loose/disconnected wires. 4) Bad accessory device FIX Battery must be >23 V, AC or needs...