LiftMaster 045ACTMC Logic Board

SKU:: 045ACTMC

MSRP: $182.88

$166.25

(You Save $16.63)

Usually Ships Following Business Day

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UPC:
brand-name:: LiftMaster
brand-url:: /brand/liftmaster/
atc-product:: 41008
atc-product:: 893MAX
atc-product:: 890MAX.LIFTMASTER-878MAX
atc-product:: VKP1-LMMC
availability:: available

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Product Description
Related Products

LiftMaster 45ACT Logic Board – Replacement Circuit Board

The LiftMaster 45ACT Logic Board is a direct replacement circuit board designed to restore full functionality to compatible LiftMaster and Chamberlain garage door opener systems. A faulty logic board can cause issues with remotes, keypads, or the safety reverse system, making this part a critical component in maintaining operational and safety performance.

This logic board is equipped with a Learn button, allowing for simple programming of remotes and accessories, as well as adjustment of travel and force settings. It is designed for easy replacement, often without professional assistance.

Compatible Garage Door Opener Models

LiftMaster 8355 – Belt Drive
LiftMaster 8557 – Belt Drive
LiftMaster 8587 – Chain Drive
Chamberlain C400

Replaces the Following Legacy Part Numbers

41D7675
041D7675
001D7675
1D7675
45ACCR, 45ACBR
45ACCL, 45ACBL
41D7656

Key Features

Part Number: 45ACT
Type: Replacement logic circuit board
Programming: Learn button for remotes and keypad syncing
Adjustability: Supports travel and force adjustments
Ease of Installation: Typically user-replaceable with basic tools
Compatibility: Designed for select LiftMaster and Chamberlain openers

Recommended Accessory

For added protection, use a 990LM Garage Door Opener Surge Protector to guard your replacement logic board against electrical surges and lightning damage.