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LiftMaster LA500UL Support Question

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Question posted by DGlandon on August 5th, 2022

Stuck

The gates are Stuck Open and Timer light Blinking. Tried reset, open, close, and stop. Cycled power and still stuck. Model:LA500CONTXMUL

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Answer #1: Posted by SonuKumar on August 5th, 2022 9:51 AM
This answer was accepted by the poster of the original question.
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Related LiftMaster LA500UL Manual Pages

LA500UL Wiring Diagram - Page 1

... Reversal (Operator 2) 92 Check for power. The Large Solar Control Box (XLSOLARCONTUL) can be used GATE STATE CLOSED OPENING OPEN CLOSING Defined Mid Stop Undefined Mid Stop Timer more than 5 seconds Red light ON/FLASH * For red light ON when gate is closed, set switch 1 on Energizes 3 seconds prior and during gate motion Energizes at open limit SBC OFF ON OFF...
LA500UL LA412UL and LA400UL Addendum - English French - Page 1

... needs. Model 893MAX 3-button mini-remote control The 3-button remote control can control garage door(s). Single-...Model S504AL, S505AL, S506AL Edge cutting tool Model ETOOL Model 890MAX Security+ 2.0® learning remote controls One button can control a gate operator and the other (s) can be programmed to operate gate operator from outside by LiftMaster after 1993. Addendum Models LA500UL...
Installation Manual - Page 19

... When an obstruction is for photoelectric sensor or edge sensor entrapment protection for the open position and resets the Timer-to each input. OPEN EYES/EDGE (2 Terminals) The OPEN EYES/EDGE input is sensed during gate closing the gate will be disregarded during gate opening. INSTALLATION Wire Entrapment Protection Devices There are for monitored devices, which include pulsed photoelectric...
Installation Manual - Page 22

...of the gate and in the engaged position. 2. The limit setup LEDs (located next to the right. SET OPEN LED OFF BLINKING BLINKING ON ON LIMIT SETUP LEDS SET CLOSE OPERATOR MODE LED OFF BLINKING ON BLINKING ON ...remote control programmed to compensate for a binding or sticking gate. Gate MUST reverse on the control board (refer to Fine Tune the Force section) to OPEN, CLOSE, and STOP.
Installation Manual - Page 25

...gate. 1. This equipment generates, uses and can be determined by turning the equipment off and on, the user is successful. Choose a programming option: OPTION DESCRIPTION PROGRAMMING STEPS Single button as an open, close, and stop . 1. The operator will automatically exit learn mode (operator will beep and green XMITTER LED will light...program. The Timer-to-Close can be...
Installation Manual - Page 28

l Option select switch set to automatically open and then latch at the OPEN limit until AC power is reset by a "50" which indicates the operator type as LA500UL. l Option select switch set to CLOSE forces gate to latch at CLOSE limit if at a limit until AC power is factory set to OPEN forces gate to OFF. l Constant pressure on a hard command input...
Installation Manual - Page 29

... the gate can be opened and closed manually. OPERATION Manual Release In case of a power failure, the operator can be disengaged from a KPW5 or KPW250 keypad (not provided). l Press the reset button to shut off after a disconnect or complete loss of AC/ battery power (the operator will stay in the open and close cycle, like a stop a moving gate during a normal open position...
Installation Manual - Page 32

...Maintained input overrides (ignores) external safeties (photoelectric sensor and edge), pauses Timer-to power accessories, always ON. 32 Turns off . Open, Stop, Close, Stop,... and COM) Relay contact output, Normally - l UNSWITCHED: 24 Vdc voltage out to -Close momentary input logic as hard open (maintained switch does not override external safeties and does not reset alarm condition). Soft...
Installation Manual - Page 33

... Timer-to OPEN, if the EXIT plug-in loop detector (Model LOOPDETLM) detects a fault, then the gate will flash the revision number (for the main board connector. Connect power. When the When set to obtain the desired OPEN or CLOSE functionality. 7. 1, 2, and 3 LEDs: 2. ON: When CLOSE EYES/Interrupt loop is deactivated it causes an opening or a stopped gate to close . EYE...
Installation Manual - Page 35

... is positioned under the gate. Open, Stop, Close, Stop, ... Control Station, 4 terminals total) Soft open (maintained switch does not override external safeties and does not reset alarm condition) If maintained, pauses Timer-to-Close at Open Limit 35 l Holds open gate at open limit l Disregarded during gate motion l Pauses Timer-to-Close at Open Limit 9 Interrupt Loop Input...
Installation Manual - Page 38

... swing gate operator will...Stop Limit (Arm 2) Battery overvoltage Battery overcurrent No battery at end of one external safety device in either the open connection in the loop, or an open or close direction. Unplug product ID harness then plug back in the code history and some are not accurate, reprogram. Possible short of monitoring Solution Disconnect all power...
Installation Manual - Page 40

... Three stage battery charging OFF The timer is disabled ON The timer is enabled MEDIUM BLINK (1 The timer is running blink per second) FAST BLINK (2 The timer is paused blinks per second) FASTEST BLINK (8 The timer is canceled blinks per second) GATE MOVING OFF ON MEDIUM BLINK (1 blink per second) The gate is stopped The gate is opening or closing Operator is in E1 (single entrapment...
Installation Manual - Page 41

... active b. Low battery voltage SOLUTIONS a. Charge batteries by AC or solar power or replace batteries d. Check all Open and Close inputs for a "stuck on . Disengage the arm and ensure arm moves freely b. Correct as necessary. Repair gate as needed . a. Check Stop button is active b. Check Reset button d. Activate wireless control and check XMITTER LED is interfering with...
Installation Manual - Page 49

...jogged back and forth using the OPEN and CLOSE buttons on the remote control until the gate reaches the desired close . Once the gate is in the desired open limit. The gate can be set the open position, press and release the STOP button on the remote control. 3. Cycle the gate open position. Perform the "Obstruction Test" after resetting each operator. Once the...
Installation Manual - Page 54

...button remote control The 3-button remote control can control garage door(s). roll) Model S50 Small profile ends kit (10 pair) Model S50E Remote controls LiftMaster offers a variety of LiftMaster remote...ring and fastening strip. Model 877MAX Plastic channel 8 ft. (2.4 m) for both small and large profile edges (pack of 8). Single-button to operate gate operator from outside by ...
Installation Manual - Page 55

...power accessory. Model K10-36183 Universal solar wire harness kit For 7AH and 33AH applications. Model 86LM Wireless commercial keypad Durable wireless keypad with operator. Must be remotely installed. Reuse existing harnesses. Model STAR1000 LiftMaster Cloud™ connected access protocol - Model LD7LP PUSH-TO-OPEN BRACKET Used to allow the gate operator to push the gate...
LA500UL Product Data Sheet - Page 1

... chart on product page at LiftMaster.com DIAGNOSTIC DISPLAY LED diagnostic display WIRELESS DUAL-GATE COMMUNICATION Eliminates expensive conduit costs and unsightly driveway scars FIRE DEPARTMENT COMPLIANT Allows gate to auto open upon loss of standby power or 500 cycles when the power is down REMOTE CONTROL ACCESS Security+ 2.0® 3-channel receiver will handle up to...
LA500PKGU Product Guide - Page 1

... ACCESS WITH AN ENCRYPTED TRI-BAND SIGNAL TO VIRTUALLY ELIMINATE INTERFERENCE AND OFFER EXTENDED RANGE. SOLAR PANEL KIT Uses the sun to power the operator with the myQ App GHLIGHTS LA500PKGUL 24VDC RESIDENTIAL/LIGHT COMMERCIAL LINEAR ACTUATOR Our most environments; INHERENT REVERSING SENSOR DETECTS OBSTRUCTIONS AND REVERSES GATE WHEN CLOSING OR STOPS/REVERSES THE GATE WHEN OPENING.
Solar Power Flyer - Page 2

...following factors: • Type of gate opener • Solar panel wattage • Average hours of sunlight a day • Number of gate open/close cycles per day • Battery voltage ... panels) • Solar Harness • Retro-Reflective Photo Eye LA500XL20W • 24VDC Solar Residential/Light Commercial Linear Actuator • XL Solar Control Box, (For use with 33AH Battery) • ...
Installation Blueprint - Page 1

... operator application. Garage and Gate Monitor Monitor and close up to four garage doors or gate operators from any room in the closed position keeping unwanted visitors out (1300 lb [589.7 kg] holding force). Model LA500U VEHICULAR SWING GATE OPERATOR Gate Operator Site Plan Solar Panel To replace or add a solar panel to monitor and control gate operators and lighting accessories enabled...

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