Garage Door Openers · parts
LiftMaster 8165W parts: identify the Wi-Fi logic-board generation
For exact LiftMaster 8165W, the manufacturer’s parts diagram lists receiver logic board 050ACTWFMC and identifies a discontinued 1/2-HP AC chain-drive Wi-Fi opener with no battery backup. LiftMaster’s replacement-board page identifies 050ACTWFMC as an alias for board 050ACTBMC, directly lists 8165W, and limits the replacement board to compatible units manufactured from 2011 through 2022; the replacement board has a yellow Learn button. That date condition belongs to the board, not every 8165W opener. Confirm the complete label and build information with LiftMaster before a board order; no internal electrical work is described.
Safety boundary
- Use only visible model information and the exact owner manual; do not remove the powerhead cover to inspect a board or wiring.
- Receiver logic-board work involves internal electrical components and should be referred to LiftMaster support or a qualified service provider.
- Keep people, pets, and vehicles clear of a moving door. Do not bypass safety sensors or automatic reversal; stop use if entrapment protection is missing or fails the exact manual’s owner-level check.
Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.
Models explicitly covered
These model identities have the source evidence listed below. Read the part decision and suffix limits before ordering.
Required identifiers
- Complete opener label exactly 8165W; do not omit the W or substitute 8165/8164W
- Manufacture date or serial/model data requested by LiftMaster’s compatibility lookup
- Part number from a service quote or existing part label, obtained without opening the powerhead
Compatibility rules
- The exact 8165W model page identifies a 1/2-HP AC chain-drive Wi-Fi opener and lists 050ACTWFMC in its replacement-parts diagram.
- LiftMaster’s 050ACTBMC replacement-board page lists 8165W as compatible and names 050ACTWFMC among the board aliases; it limits the board to compatible openers manufactured 2011–2022 and describes a yellow Learn button.
- Use the exact 8165W manuals/product guide linked by LiftMaster. The replacement-board page’s date range is a board eligibility condition, not proof that every 8165W was built within that range.
Never assume
- The W model is the same opener or radio setup as base 8165, 8164W, 8155W, or another Wi-Fi chain-drive model.
- A yellow Learn button alone proves every remote, receiver, or logic board is compatible.
- The 2011–2022 replacement-board condition describes the manufacture dates of all 8165W units.
- A logic-board symptom is safe or suitable for homeowner diagnosis or replacement.
Model-specific board receipt
LiftMaster’s exact replacement-parts page lists 050ACTWFMC as the receiver logic board for model 8165W. Its specification panel identifies the opener as 1/2-HP, AC, chain-drive, Wi-Fi, with no battery backup.
Replacement-board date limit
LiftMaster’s 050ACTBMC product page lists 8165W among compatible models and calls 050ACTWFMC an alias. The board page says this replacement is for compatible models manufactured 2011–2022 and has a yellow Learn button. Confirm the actual opener build before ordering; the date restriction does not establish a build date for a specific opener.
Find the right manual and part
- LiftMaster links the Wi-Fi opener Owner’s Manual and User’s Guide from the exact 8165W page.
- The 8165W Product Guide identifies the 1/2-HP AC chain-drive Wi-Fi model and its included accessories.
- Ask LiftMaster support or a qualified technician to verify the full label, build information, and current part number before ordering.
Owner-safe boundary
This lookup identifies a listed part; it is not a board diagnosis or replacement procedure. Keep internal electrical and powerhead work with a qualified service provider.