Garage Door Openers · parts
Chamberlain B2212T battery and safety-sensor part match
For exact B2212T shown on Chamberlain’s US Spanish-language parts page, the manufacturer lists backup battery G4228 and 041-0136 safety sensors with 041-0155-000 brackets. The model page links installation and Wi-Fi manuals. Its on-page catalog locator includes TMC, but displayed opener model is B2212T. Confirm actual labels; brackets 041-0155-000 only pair with 041-0136.
Safety boundary
- Do not bypass, disconnect, or defeat safety sensors or automatic reversal. Stop use if entrapment protection is missing, damaged, or fails an owner-level manual check.
- Keep people, pets, and vehicles clear of a moving door. Limit owner checks to labels, visible obstruction, and normal operation in the exact manual.
- No DIY spring/torsion/shaft, cable, balancing, track/tension, energized wiring, or internal powerhead work; call a qualified technician.
Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.
Required identifiers
- Full opener label exactly B2212T; page displays B2212T while URL has a TMC catalog key
- Replacement backup battery listed: G4228
- Read sensor/bracket labels; 041-0155-000 pairs only with 041-0136
- Exact page is US Spanish locale
Compatibility rules
- Page displays exact opener model B2212T and lists Wi-Fi/battery backup parts.
- Exact page lists battery G4228, sensors 041-0136, brackets 041-0155-000 and linked manuals.
- Chamberlain restricts brackets 041-0155-000 to sensors 041-0136, not older sensor generations.
Never assume
- The TMC commerce key changes the displayed opener model B2212T.
- A B2212T diagram applies to neighboring models without source evidence.
- Safety/reversal checks can be replaced by an app or remote test.
B2212T model parts
Backup battery: G4228. Safety sensor kit: 041-0136. Sensor brackets: 041-0155-000 for use with 041-0136 only. The exact page links installation and Wi-Fi manuals.
Locale and catalog clarity
The page is US Spanish locale; the displayed model field is B2212T while the catalog URL includes B2212TMC. Preserve the opener label B2212T and follow the exact diagram.
Internal parts are not DIY instructions
The diagram includes receiver boards, but these are internal electrical service references only. Do not open the powerhead or do live tests.