Chamberlain B2211T Belt Drive Parts
Chamberlain B2211T Replacement Parts
The B2211T is a DC belt drive opener with battery backup and a Bluetooth logic board, running on a square rail. Its head unit parts are not shared with the older AC belt drives — there is no capacitor and no belt cap retainer. This parts list covers all variants:
- B2211
- B2211T
- B2211TC
- B2211TCH
Beeping, running slowly, or dead during a power cut? That is almost always just the backup battery — the 4228 12V battery at key 10. It is a consumable and lasts a few years. The opener runs normally on mains with a dead battery; it just will not work during an outage.
1. Garage Door Opener Repair Parts
First part of number below corresponds to diagram number above:
| Key | Part Number | Description |
|---|---|---|
| 1 | 041B5348-2 | Sprocket and hub kit |
| 2 | 041A7618 | End panel |
| 3 | 041-0144 | Light lens |
| 4 | 041C0279 | Light socket |
| 5 | 041-0229-000 | Cover |
| 6 | 041-0236-000 | Motor with travel module, DC |
| 7 | 041D8071-4 | Travel module kit, universal DC |
| 8 | 041D0233-3 | End panel, Wi-Fi |
| 9 | 050DCTBFMC | Logic board, Bluetooth enabled |
| 10 | 4228 | Battery, 12V |
| — | 041D9069 | Wire harness kit — not shown on diagram |
| — | 041D0277-1 | Transformer, Wi-Fi battery backup — not shown on diagram |
| — | 041B4245-1 | Power cord kit, 6 ft — not shown on diagram |
| — | 041A3150 | Terminal block kit — not shown on diagram |
Replacing the logic board? The B2211T uses the 050DCTBFMC Bluetooth board — the AC boards used on the B2202 and B2405 will not fit or pair. Read the number printed on the board you are removing before ordering, and call (866) 965-5599 if it is not this one. The motor at key 6 comes with a travel module, so you do not need both.
If the door reverses at the wrong point or will not learn its travel, that is usually the travel module alone rather than the motor or the board — a cheaper part and a quicker job.
2. Rail Assembly Parts
First part of number below corresponds to diagram number above:
| Key | Part Number | Description |
|---|---|---|
| 1 | 041A5250 | Belt kit — 7 ft door |
| 1 | 041A5250-1 | Belt kit — 8 ft door |
| 1 | 041A5250-2 | Belt kit — 10 ft door |
| 2 | K144C0054M | Belt idler pulley |
| 3 | 004A1008 | Chain, #48, master link |
| 4 | 041A5665 | Rail kit, 7 ft |
| 5 | 041C5141-2 | Square rail trolley kit |
| 6 | 041D0598-1 | U bracket adapter |
| 7 | 041A6689 | Threaded shaft, D shape |
| 8 | 041B4103 | Belt tensioner kit |
| — | 041A7276 | Trolley wear pads — not shown on diagram |
| — | K083A0011-1 | Lithium rail grease — not shown on diagram |
The belt is sized to your door height, not your rail — measure the door opening. A belt rarely fails on its own: check the idler pulley, trolley, tensioner and wear pads while the rail is apart. Re-grease with the lithium grease above; do not use general purpose spray lube on a square rail.
3. Installation Parts
First part of number below corresponds to diagram number above:
| Key | Part Number | Description |
|---|---|---|
| 1 | 041B0035B | Curved door arm |
| 2 | 041A5047-1 | Door bracket |
| 3 | 041A2828 | Emergency manual release rope |
| 4 | 041A5047-3 | Header bracket — square rail |
| 5 | K029B0137 | Remote control visor clip |
| 6 | 041-0155-000 | Safety sensor bracket kit |
| 7 | 041-0136 | Safety sensor kit |
| 8 | 4178B0034B | Straight door arm |
| 9 | 041B4494-1 | White and red bell wire |
| 10 | K010A0020 | 3V CR2032 lithium battery |
| 11 | K012B0776 | Hanging bracket kit |
| — | 041A7920-2 | Hardware kit — not shown on diagram |
| — | 041-0365-000 | Sensor eyes and brackets — the complete set |
| — | 893MAX | Universal replacement remote |
The B2211T takes the 041A5047-3 square rail header bracket — the standard header brackets will not fit. If your sensor brackets are bent or missing as well as the eyes, the 041-0365-000 includes both and works out cheaper than buying them separately.
More Chamberlain Parts
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