Liftmaster 41A2822-1 - Interrupter Cup
The LiftMaster 41A2822-1 interrupter cup is an internal replacement part used in select garage door openers to support the opener's movement-sensing system. It is a small mechanical component that must match the opener model and sensor arrangement.
Compatibility and Application
Compatible with select LiftMaster and Chamberlain garage door openers that list 041A2822-1 or 41A2822-1 in the replacement parts diagram. Current LiftMaster references commonly include the 3280 belt drive and 3265 chain drive opener models.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain |
| Product Type | Interrupter cup |
| Part Number | 041A2822-1 |
| Application | Internal movement/RPM sensing support component |
| Compatible Operator Type | Select chain drive and belt drive garage door openers |
| Commonly Associated Models | 3280 and 3265 where listed by parts diagram |
| Notes | Not a safety photo eye or external sensor |
Also Known As / Related Part Numbers
- 041A2822-1
- 41A2822-1
- Interrupter cup
- RPM interrupter cup
Technician Note
Interrupter cup problems can look like logic or travel issues. Before replacing electronics, inspect the cup, sensor position, wiring, and connector condition inside the opener head.
Before Ordering
- Confirm 041A2822-1 or 41A2822-1 in the opener parts diagram.
- Compare the removed interrupter cup to the replacement part.
- Inspect the RPM sensor area for broken clips, dust, or loose wiring.
- Confirm the opener model and drive type before ordering.
- Do not confuse this part with external safety sensors or wall controls.
Professional Advisory
Disconnect power before opening the motor head. If the opener has unpredictable movement, excessive force, or unresolved travel issues, a qualified garage door technician should inspect the system.
Product Questions & Answers
What is the LiftMaster 41A2822-1 interrupter cup?
It is an internal part used with the opener's movement or RPM sensing system on select LiftMaster and Chamberlain garage door openers.
Is the interrupter cup the same as a safety photo eye?
No. A safety photo eye mounts near the floor opening, while the interrupter cup is an internal opener component.
Which models are commonly associated with 041A2822-1?
Current LiftMaster references commonly list model 3280 and model 3265 when the parts diagram calls for this interrupter cup.
What symptoms can a damaged interrupter cup cause?
It may cause erratic travel, failure to read movement correctly, or operation that appears similar to a sensor or control issue.
Should I replace the logic board first?
Not necessarily. Inspect the interrupter cup, RPM sensor area, wiring, and connectors before replacing more expensive electronics.
