LiftMaster LA400 Dual Swing Gate Operator Kit (LA400PKGUL-DUAL) — Two Arms, Up to 16 ft / 850 lbs Each

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SKU:
LA400PKGUL-DUAL
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In Stock

Price: $2,197.40
Sale Price: $1,977.66
UPC:
12381191529
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New
Liftmaster LA400PKGUL-DUAL

LiftMaster LA400 Dual Swing Gate Operator Kit

The LiftMaster LA400PKGUL-DUAL is a complete two-arm kit for automating dual (bi-parting) swing gates — the double-gate setup where two leaves meet in the middle. It includes everything needed to power both gate leaves: two 24VDC linear actuator arms, a control box with built-in Security+ 2.0 receiver, monitored safety photo eyes, and battery backup.

Each arm handles a gate leaf up to 16 ft long or 850 lbs, making this ideal for residential driveways, HOA entrances, and light commercial properties with double swing gates. Fully UL325 compliant with the included monitored safety devices.

Need a single-gate kit instead? See the LiftMaster LA400 single swing gate operator.

Features

One of our most popular swing gate operators, built for unsurpassed performance and secure access. With MyQ Technology you can monitor and control your gate from anywhere, and the built-in interference-eliminating Security+ 2.0 radio gets you in quickly and securely. Best-in-class power management extends battery backup for up to 97 days without recharging.

Connectivity

  • MyQ Technology — securely monitor and control your gate operator and house lights from your smartphone.
  • Alerts — receive email or push notifications so you always know your gate's status.
  • MyQ Mobile App — free download, no annual activation fee.

Performance

  • Battery Backup — up to 400 cycles or 97 days of standby power during an outage.
  • Solar Ready — ultra-reliable and power-efficient; homeowners may qualify for the 30% solar tax credit.
  • Heavy-Duty Cast Aluminum DC Motor — powerful enough for demanding applications, with soft start/stop that extends operator and hardware life.
  • Gate Size — rated for gates up to 16 ft long or 850 lbs per leaf.

Safety & Security

  • Security+ 2.0 Multi-Frequency Radio — virtually eliminates interference and offers 2X the range of standard remotes.
  • Safety Inputs — provided for safety reversing devices; protect each entrapment point with its own device.
  • UL/cUL Listed — tested to stringent industry safety standards.

What's Included

  • (2) LA400 24VDC linear actuator arms
  • Control box with built-in Security+ 2.0 receiver
  • Expansion board for the second arm
  • Monitored safety photo eyes
  • Battery backup
  • All necessary mounting hardware

LiftMaster LA400 Error Codes & Troubleshooting

Quick reference for common diagnostic codes on the LA400 dual control board. Full troubleshooting is in the official manual.

CodeDescription / Solution
31 Main control board internal failure — reboot (disconnect power 15 sec); replace board if it persists.
32 / 33 Linear drive disengaged (Arm 1 / Arm 2) — re-engage arm, check wiring and connections.
35 Max run time exceeded — check for obstruction, then reprogram limits.
36 / 37 Product ID error/failure — reseat product ID harness; reboot before replacing.
38 / 39 Hard stop limit (Arm 1 / Arm 2) — limit set too tight or operator at end of travel; re-adjust.
40 / 41 / 42 Battery over-voltage / over-current / none at boot — check harness and battery; confirm correct 24V setup.
43–45 Loop errors (exit / shadow / interrupt) — check loop wiring for shorts or open connections.
51 / 52 Pass-point not detected (Arm 1 / Arm 2) — check yellow pass-point wiring; reprogram limits if inaccurate.
53 Brownout — AC/DC supply dipped too low; review power supply and wiring.
54 / 80 / 81 Wireless / second-operator communication error — check power and re-learn the second operator.
60 Minimum monitored entrapment devices not installed — add at least one external safety device.
61–75 Eye/edge held or triggered too long, or causing reversal — check alignment, inputs, wiring, or obstruction.
82 / 83 Expansion-board communication fault — check connections between main and expansion boards.
84 Non-monitored device on wireless safety system — use monitored devices only; check edge orientation.
91 / 92 Force reversal (Operator 1 / 2) — check for obstruction; confirm mechanical assembly moves freely.
93 / 94 RPM / stall reversal — check obstruction and wiring; replace APE assembly if needed.
99 Normal operation — no action required.

Full error-code list and detailed troubleshooting is in the official LA400 manual.

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