LiftMaster 41A2822A Large Interrupter Cup Kit
The LiftMaster 41A2822A is a large interrupter cup replacement kit used on select LiftMaster, Chamberlain, and compatible Craftsman residential garage door openers. It is part of the motor sensing system that helps the opener read rotation and travel feedback.
This part is commonly used when the interrupter cup is cracked, missing, distorted, or no longer passing properly through the sensor area of the opener.
What This Part Does
The interrupter cup rotates with the motor assembly and passes through the opener sensor so the control board can read movement. If the cup is damaged or the wrong size, the opener may not properly track motor rotation or travel movement.
Symptoms may include erratic travel, stopping, failure to set limits, or control-board-style errors that are actually caused by the sensing hardware.
Compatible With
The 41A2822A is used on select LiftMaster, Chamberlain, and Craftsman residential openers that specify the large interrupter cup in the replacement parts diagram.
Common Compatible Model Families to Verify
- Select LiftMaster 1345 and 1346 chain drive openers
- Select LiftMaster 2245, 2255, and 2265 chain drive openers
- Select LiftMaster 2280 belt drive openers
- Select LiftMaster 2565 chain drive openers
- Select LiftMaster 2580 belt drive openers
- Select Chamberlain and Craftsman openers using the same large interrupter cup design
Important Compatibility Notes
- Confirm whether the opener uses the large interrupter cup, not the smaller version
- Match the motor/sensor assembly and parts diagram
- Not a universal RPM sensor replacement
- Commonly referenced with 041A2822A and 062225
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | Large Interrupter Cup Kit |
| Part Number | 41A2822A |
| Application | Motor rotation and travel sensing component |
| Compatible Operator Type | Select residential chain drive and belt drive openers |
| Related Numbers | 041A2822A, 062225 |
| Notes | Verify cup size and opener parts diagram before use |
Also Known As / Related Part Numbers
- 41A2822A
- 041A2822A
- 062225
- Large interrupter cup
- Interrupter cup and ring kit
- LiftMaster RPM interrupter cup
- Chamberlain interrupter cup
Technician Note
Do not replace the logic board until the interrupter cup, sensor, wiring, and motor assembly have been inspected. A cracked or misaligned interrupter cup can create symptoms that look like an electronic failure.
Before Ordering, Confirm
- Original part number or parts diagram calls for 41A2822A or 041A2822A
- Opener uses the large interrupter cup style
- Sensor area and wiring are intact
- Motor shaft and cup position match the original assembly
- The issue is not caused by door binding or limit setup
Professional Advisory
Disconnect power before opening the garage door opener housing. After replacement, test the opener travel and safety reversal system. If the opener continues to lose position or stop unexpectedly, inspect the RPM sensor and control board circuit.
Important Ordering Warnings
- Large and small interrupter cup designs are not always interchangeable
- A damaged sensor or wire harness can cause similar symptoms
- Do not force the interrupter cup onto the wrong motor shaft
- Confirm the exact opener model before ordering
Questions & Answers
What does the 41A2822A interrupter cup do?
It helps the opener sensing system read motor rotation and travel feedback as the motor runs.
What symptoms can a bad interrupter cup cause?
A damaged interrupter cup may cause erratic travel, stopping, failure to set limits, or opener movement errors.
Is this the large or small interrupter cup?
The 41A2822A is commonly referenced as the large interrupter cup kit. The original cup size should be matched before ordering.
Can this replace an RPM sensor?
No. The interrupter cup works with the sensor, but it is not the same part as the RPM sensor or logic board.
Which openers commonly use this style of part?
It is commonly associated with select LiftMaster, Chamberlain, and Craftsman chain drive and belt drive openers that list 41A2822A or 041A2822A in the parts diagram.
