LiftMaster LA400UL Linear Actuator Replacement Parts

Liftmaster 041ASWG-0119 Set of release keys LA500 Commercial Swing Gate Opener

LiftMaster 041ASWG-0119 Swing Gate Operator Release Key Set

$10.78

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Liftmaster 041ASWG-0014SA Rear Connector for Swing Gate Door Operators

LiftMaster 041ASWG-0014SA Rear Connector for Swing Gate Operators

$15.13

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Liftmaster K1D8388-1CC Main Control Board, Linear Actuators, UL325 Gate Systems

LiftMaster K1D8388-1CC Main Control Board for LA400UL, LA412UL and LA500UL Linear Actuator Gate Operators

$459.95

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Liftmaster K77-19130 replacement Hardware Kit LA400 and LA412 Swing Gate Openers

LiftMaster K77-19130 Hardware Kit for LA400 and LA412 Gate Operators

$91.35

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Liftmaster 41ASWG-0442SA Release Lever Kit LA400 LA412 Swing Gate Operators

$98.46

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Liftmaster 041ASWG-0438SA Motor, 24V, LA400 Swing Gate Opener Replacement Motor

Liftmaster 041ASWG-438SA Motor, 24V, LA400 Swing Gate Opener Replacement Motor

$269.95

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Liftmaster 001D9040-1CC Main Control Board, K1D9040-1CC, LA400UL LA412UL LA500UL

$459.95

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Liftmaster K74-30762, BATTERY PACK, 12V, 7A

$170.91

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LiftMaster K74-30941 Fuse Kit for LA400, LA412 and Select DC Swing Gate Operators

$24.70

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Liftmaster K74-39307-2, CONTROL BOX, PLASTIC, LA400UL

Liftmaster K74-39307-2, CONTROL BOX ONLY, PLASTIC, LA400UL

$561.09

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Liftmaster K75-36635, CONTROL BOARD MOUNTING BRACKET

$68.33

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LiftMaster K76-36296-1 Receptacle Kit for LA400 and LA500 Swing Gate Operators

$65.14

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Liftmaster K77-19130-1, TWO POST BRACKET KIT, LA400, LA412

LiftMaster K77-19130-1 Two Post Bracket Kit for LA400 and LA412

$178.46

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LiftMaster K77-36541 Replacement Antenna for 850LM, 860LM, STAR1000 and PPWR Receivers

$34.95

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LiftMaster K94-36274-1, BATTERY WIRE HARNESS, 7AH, LA500 , LA400

$23.21

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LiftMaster K94-36408-2, RESET SWITCH, LA400

$56.20

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LiftMaster K94-36411, PIEZO ALARM

$32.36

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Liftmaster LA400, LA400DC REPLACEMENT ARM

LiftMaster LA400DC Replacement Primary Swing Gate Operator Arm Only

$571.74

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LiftMaster APOW3 - K76-37251 Transformer

$37.95

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Liftmaster 41ASWG-0489 Cable, 24V 3m with Connector

$45.35

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LiftMaster K41-39254 Reflector and Bracket Kit

$94.95

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LiftMaster A12330SGLPK 33AH Battery w/Harness

$199.95

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LiftMaster GPINLCK Pin Lock

$64.95

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LiftMaster K94-37236 UNIVERSAL SOLAR HARNESS KIT-7AH & 33AH

$44.95

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LiftMaster ABT12 Battery (Refer to Accessories Catalog)

$69.95

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LiftMaster LA400-JB40 Junction Box w/Cable (Refer to Product Catalog)

$149.95

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Frequently Asked Questions : Liftmaster LA400UL 24VDC Residential Linear Actuator Replacement Parts

Q1: What are the primary wear components on the LiftMaster LA400UL linear actuator?

A1: Common wear items on the LA400UL include the internal drive screw, limit switch assemblies, and 24VDC motor brushes. Regular visual inspection of these components helps maintain consistent gate operation and prevent unexpected mechanical failure.

Q2: How do I verify control board compatibility for the LA400UL operator?

A2: Control board compatibility depends on the specific manufacturing generation and the 24VDC electrical requirements of the gate operator. Always cross-reference the part number printed on the original circuit board with the official LiftMaster technical manual.

Q3: How often should the backup batteries be replaced in the LiftMaster LA400UL system?

A3: The backup batteries, which support the 24VDC system, generally require replacement every three to five years depending on cycle usage and environmental conditions. Regular load testing is advised to ensure the batteries can sustain operation during power outages.

Q4: What causes the actuator arm on the LA400UL to bind during operation?

A4: Binding is frequently caused by a lack of lubrication on the extension tube, worn pivot brackets, or improper physical gate geometry. If the pivot points are well-lubricated but issues persist, a local professional should inspect the gate structure.

Q5: What are the symptoms of a failing limit switch assembly on the LA400UL?

A5: A failing limit switch often causes the gate to over-travel its designated open or close positions, or the motor may continue to hum after stopping. Diagnostic testing of the electrical continuity should be performed by a qualified gate technician.

Q6: Can the 24VDC motor be replaced independently within the LA400UL actuator arm?

A6: Yes, the internal 24VDC motor can be swapped if diagnostic testing confirms a mechanical or electrical failure. Because motor replacement involves precise mechanical alignment within the actuator casing, it must be conducted by a certified professional.

Q7: What type of maintenance does the extension tube on the LA400UL require?

A7: The extension tube should be kept clean and free of debris to prevent premature wear on the internal wiper seals. Routine maintenance involves wiping the stainless steel tube with a dry cloth and avoiding heavy greases that attract abrasive dirt.

Q8: Are standard LA400UL replacement parts compatible with solar-powered setups?

A8: The LA400UL is solar-optimized, meaning its standard mechanical parts function identically regardless of the power source. However, specific solar charge controllers and panels must strictly meet LiftMaster's electrical specifications.

Q9: How are monitored entrapment sensors integrated into the LA400UL control board?

A9: Monitored safety devices, such as photoelectric eyes and sensing edges, must be wired directly into the designated safety terminal blocks on the main logic board. Proper integration by a certified technician is mandated to comply with UL 325 safety standards.

Q10: What should be done if the manual release key for the LA400UL is lost?

A10: The manual disconnect requires a specific replacement key matching the lock cylinder installed on the actuator arm. If the cylinder is damaged or the key code is unavailable, the entire manual release assembly should be evaluated and replaced by a local gate professional.

LiftMaster LA400UL Linear Actuator Replacement Parts

Products [26]

Frequently Asked Questions : Liftmaster LA400UL 24VDC Residential Linear Actuator Replacement Parts

Q1: What are the primary wear components on the LiftMaster LA400UL linear actuator?

Q2: How do I verify control board compatibility for the LA400UL operator?

Q3: How often should the backup batteries be replaced in the LiftMaster LA400UL system?

Q4: What causes the actuator arm on the LA400UL to bind during operation?

Q5: What are the symptoms of a failing limit switch assembly on the LA400UL?

Q6: Can the 24VDC motor be replaced independently within the LA400UL actuator arm?

Q7: What type of maintenance does the extension tube on the LA400UL require?

Q8: Are standard LA400UL replacement parts compatible with solar-powered setups?

Q9: How are monitored entrapment sensors integrated into the LA400UL control board?

Q10: What should be done if the manual release key for the LA400UL is lost?