LiftMaster LA400 Support Question
LiftMaster LA400 Support Question
Find answers below for this question about LiftMaster LA400.Need a LiftMaster LA400 manual? We have 3 online manuals for this item!
Current Answers
Answer #1: Posted by SonuKumar on July 3rd, 2021 11:31 PM
SonuKumar
Member since:
May 9th, 2021 Points: 16,622,780
Member since:
May 9th, 2021 Points: 16,622,780
How do I reset my LiftMaster garage door opener?
Press CH1 or CH2 on the Radio Board inside the Control Panel and release CH1 to program remote to open both gates (or partial opening on Sliding Gate) CH2 to Program Remote to open one gate (or full opening on Sliding Gate). LED will light.
https://www.youtube.com/watch?v=wfGyVrtfyQs
How do I unlock my LiftMaster gate?
On a LiftMaster new or old swing gate on top of the arm is a cover with a release key under it. Use the key to unlock and make a half turn on the handle, this will release the gate to move freely. On most other gate operators taking the cotter pin out of the hinge at the gate only will allow the gate to move freely.
Do LiftMaster garage door openers have a reset button?
As a homeowner, you should reset the opener to prevent outsiders from opening the door with a remote that's set to a Liftmaster default code. ... Press and hold the button on the remote until the light bulb on the opener blinks, indicating the opener has been reset. If a bulb is not installed, listen for two clicks.
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.
Regards,
Sonu
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Related LiftMaster LA400 Manual Pages
LA400 Manual - Page 2
...Open Bracket Determine Position of the "Optional" Push-to-Open Bracket Assemble Gate Post Bracket (Pull-to-Open...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... Protection
OPERATION AND MAINTENANCE
Reset Button Remote Control Manual Release ...
LA400 Manual - Page 8
...
10" (25.4 cm)
36.3" (92.1 cm)
RESET
6" (15.2 cm)
.475" DIA. (1.2 cm DIA.)
37.4" (95 cm)... inventory is doubled except for a 90° opening 4 Minutes -20° C to + 50° C -4° F to -Open Bracket (1) • Hex Bolt 5/16"-18 ...• Warning Sign (2) • Battery (2) • Plug-in Transformer (1)
LA400-S (SECOND GATE OPERATOR ARM)
• Motor Cable - IP56 (1) •...
LA400 Manual - Page 19
... possible for best radio reception.
1 Remove screws and open the control box.
1
2 Disconnect the reset button, alarm, and coaxial connector.
3 Loosen screws to ...surface using the appropriate hardware (not provided). Column
5 2 Alarm
6
2 Coaxial Connector 4
3 2 Reset Button Connections
Knock Outs
Knock Outs
Knock Outs
7
A.
C.
18 Knock Outs
B. A. Post B. INSTALLATION »...
LA400 Manual - Page 20
INSTALLATION » STANDARD CONTROL BOX
INSTALL THE CONTROL BOARD
NOTE: Make sure the battery leads are on the left side of the control box and not pinched.
1 Attach the antenna. 2 Reinstall the batteries, control board, alarm and reset button.
1 2
Coaxial Connector
Reset Button Connections Alarm
19
LA400 Manual - Page 21
...
GATE 2
ON OFF
AUTO OPEN LOW BATT
OFF MAX
OFF MSIANXGLE BUTTON
OFF
TIMER TO CLOSE
C OPEN
SINGLE BUTTON
RESET
OFF MAX
STOP CTRL PWR CTRL PWR
SHADOW
INTERRUPT CHGR OVLD CTRL PWR
AC PWR /SOLAR
EARTH GROUND ROD INSTALLATION (REQUIRED) It is
2 The control box can be removed by opening the
door 90°. See chart...
LA400 Manual - Page 22
...OPEN EDGE/ PHOTO
OPEN PHOTO
SET OPEN LIMIT
GATE 1
CLOSE PHOTO
SET CLOSE LIMIT
LEARN LIMITS
FORCE
GATE 2
ON OFF
AUTO OPEN LOW BATT
OFF MAX
SINGLE BUTTON
TIMER TO CLOSE
OPEN
CONTROL INPUTS
SINGLE BUTTON
RESET...application the 120 Vac access panel may be used to access the wiring.
3 Connect two 7AH batteries, purchased separately. See Accessories page. Follow all instructions for ...
LA400 Manual - Page 24
... this gate. The following illustration shows a dual gate configuration with the longer travel span (opening) must be
connected to desired setting.
Thus, it is OFF.
WIRING » SET THE BIPART DELAY (MODEL LA400-S ONLY)
SET THE BIPART DELAY (MODEL LA400-S ONLY)
In some dual gate installations, one gate or if using a
solenoid lock, for...
LA400 Manual - Page 25
...control box.
3 Extend cable and wires to Gate 2 connector and connect as shown. 4 Secure extension cable to control box using watertight connector...4
Extension Cable
PVC Conduit
24 WIRING » CONNECT THE GATE OPERATOR (GATE 2) TO THE CONTROL BOX (MODEL LA400-S ONLY)
CONNECT THE GATE OPERATOR (GATE 2) TO THE CONTROL BOX (MODEL LA400-S ONLY) Before digging, contact local underground utility ...
LA400 Manual - Page 26
... knock out using a screwdriver and hammer. WIRING » JUNCTION BOX (MODEL LA400-S ONLY)
JUNCTION BOX
The following items are required to be used for the
watertight...box (not provided).
6 Secure with 3/4" NPT threaded port holes
• Screws • PVC Conduit
1
1 Open the junction box by removing screws (4) and set aside.
2 Select holes to complete the junction box installation:
...
LA400 Manual - Page 31
... or Right-handed. The programming times-out automatically after 60 seconds of buttons on which side of the control box to the desired OPEN position. LEARN LIMITS button
SET OPEN LIMIT
R2 K2 U4
D4 D2
RESET BUTTON
4 Press the Gate 1 right button to move gate to open position and the fully closed position, press the LEARN LIMITS...
LA400 Manual - Page 32
...
GATE 1
SET CLOSE
5 Press the GATE 2 right button to open and close the gate.
31
PROGRAM OPEN
3 Press the LEARN LIMITS button (SET OPEN LIMIT LED will beep.
LEARN LIMITS button
SET OPEN LIMIT
R2 K2 U4
D4 D2
RESET BUTTON
4 Press the GATE 1 right button to move the right operator into the OPEN position.
6 SET
CLOSE LIMIT
LE LIMITS
Press...
LA400 Manual - Page 33
... time by pressing the RESET button.
SET CLOSE LIMIT
LE LIMIT
GATE 2
8 Press the GATE 1 right button to open the right operator.
SET CLOSE LIMIT
LE LIMITS
6 Press the LEARN LIMITS
SET
SET
GATE 2
OPEN
CLOSE
button. ADJUSTMENT » LIMITS
LIMITS
NOTES: • The gate with the longer travel span (opening) must be connected to GATE 1 so it...
LA400 Manual - Page 34
... THE TIMER-TO-CLOSE
1 Rotate the Timer-to-Close dial to the mid position. The TTC is reset by any signals from a remote control or SBC. TIMER-TO-CLOSE (TTC) The Timer-to-Close ... seasonal adjustment may be required. TO ADJUST THE FORCE
1 Using the 3-button remote or the Single Button Control (SBC) button on the control board, open and then close the gate.
2 If the gate stops or reverses before...
LA400 Manual - Page 37
... type. OPEN
CONTROL INPUTS
SINGLE BUTTON
RESET
STOP COM COM
OPEN
CONTROL INPUTS
SINGLE BUTTON
RESET
S T O P COM COM
POWER
OPEN
CONTROL INPUTS
SINGLE BUTTON
RESET
S T O P
COM COM
POWER
OPEN
CONTROL INPUTS
SINGLE BUTTON
RESET
STOP COM COM
OPEN COMMON
AND/OR
SINGLE BUTTON COMMON
AND/OR
COMMON RESET
36 NOTE: Stop jumper is required for use with a single reset button that is...
LA400 Manual - Page 38
CLOSE SAFETY EDGE
This input will reverse a closing will reactivate at the open control. Order part number LA400-BOX to -Close if that feature has been enabled. If a Chamberlain Pulsing Photoelectric Sensor (See Accessories) has been connected to -Close will have no effect.
OPEN SAFETY PHOTOELECTRIC SENSOR (ENTRAPMENT)
This input will have no effect. ADDITIONAL...
LA400 Manual - Page 39
...
Z4
U3
C11
OFF MAX
F7
C13
C4
F6 F2
SINGLE BUTTON
RESET
STOP
POWER
COM COM
SHADOW
LOOP INPUTS
INTERRUPT
CHGR OVLD
COM...20A 32V
MOV1 JMPR2 DB1
C64 U2
R9 D1
JMPR1
D4 D2
FUSE OPEN
BATT 2 BATT 1
Accessory Power
AUXILIARY OUTPUT POWER FOR OPTIONAL DEVICES
...
VOLTAGE +24 Vdc
Emitter with the LA400 to control box depending on wire gauge and distance - 300 mA accessory power,...
LA400 Manual - Page 40
... or SBC on function. After the operator is in the open cycle another activation of the remote control will stop , the alarm will require resetting. RESET
RESET
Reset Button
REMOTE CONTROL
Once the remote control has been programmed operator will operate as follows:
When gate is reset, normal functions will operate the gate during this time. MANUAL...
LA400 Manual - Page 42
...D9
C12
D27 Z3
Z4
U3
C11
OFF MAX
F7
C13
C4
F6 F2
SINGLE BUTTON
RESET
STOP
POWER
COM COM
SHADOW
LOOP INPUTS
INTERRUPT
CHGR OVLD
COM
F1 20A 32V
MOV1...10
Connector P16
11
Connector P13
12
Connector P17
13
Connector P14
FUNCTION
Antenna Input Close Edge Open Edge/Photo Open Photo Close Photo Switched Accessory Power* Control Inputs Loop Inputs 24 Vac Input Gate 2 Accessory ...
LA400 Manual - Page 46
...pre-paid . UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES ARISING IN CONNECTION WITH USE, OR INABILITY TO USE, THIS PRODUCT. Failure to our service center for warranty repair.... ANY PROBLEMS WITH, OR RELATING TO, THE GARAGE DOOR OR GARAGE DOOR HARDWARE, INCLUDING BUT NOT LIMITED TO THE DOOR SPRINGS, DOOR ROLLERS, DOOR ALIGNMENT OR HINGES.
LA400 Manual - Page 47
...detector with sensing probe is housed in case of the gate.
The model LA400 requires two batteries. To order visit www.liftmaster.com 46
Fail safe ...Connect): Maximum range is lost. Requires separate power supply (Model ARMP5). ACCESSORIES
50-19503
Push-to-Open Bracket Used toOPEN allow for free exit only. GC824-12
3-Button Mini-Remote Control with gate, providing for a Open...
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