LiftMaster K22-36900 Three Phase Logic 5 Brake Solenoid Kit
The LiftMaster K22-36900 brake solenoid is a voltage-specific replacement part used in select three-phase LiftMaster Logic 5.0 commercial door operator brake systems. In a braked commercial operator, the solenoid is responsible for releasing the brake when the operator runs and allowing the brake to engage when the operator stops. If the solenoid is weak, open, overheated, or mechanically damaged, the operator may hum, trip protection, fail to move, coast, stop inconsistently, or show brake release problems.
This part is listed for 208/230V, 60Hz, three-phase Logic 5 brake applications. It should be separated from the K22-36899 single-phase brake solenoid and 575V brake solenoid options because those parts are not the same electrical configuration. It should also not be confused with gate-operator internal brake solenoid kits such as K71-B3PH or K71-B575 unless the correct parts diagram calls for that different family.
Use this item where the LiftMaster commercial operator parts diagram calls for K22-36900 or a three-phase Logic 5 brake solenoid. Verify voltage and phase from the operator nameplate before ordering, especially on buildings where equipment may have been rewired, converted, or serviced with older brake hardware.
Compatible With / Common Applications
- Select LiftMaster Logic 5.0 commercial door operators using a 208/230V, 60Hz, three-phase brake solenoid
- Commercial door operator brake assemblies where the parts diagram specifically calls for K22-36900
- Logic 5.0 commercial operator service paths that separate K22-36899 single-phase, K22-36900 three-phase, and 575V brake solenoid options
- Commonly associated with three-phase commercial door operator brake repair, not residential garage door opener repair
- Not interchangeable with K22-36899 single-phase, 575V brake solenoids, K71-B3PH internal brake solenoids, or K71-B575 575V gate brake kits unless the diagram says so
Features and Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Brake solenoid replacement kit |
| Part Number | K22-36900 |
| Application | Logic 5.0 commercial door operator brake assembly repair |
| Voltage | 208/230V |
| Phase | Three phase |
| Frequency | 60Hz |
| Compatible Operator Type | Select LiftMaster Logic 5.0 commercial door operators |
| Notes | Match voltage, phase, brake assembly, and parts diagram before ordering |
Also Known As / Related Part Numbers
- K22-36900
- 22-36900
- 2236900
- LIF-K22-36900
- Three Phase Brake Solenoid
- 3PH L5 Brake Solenoid
- Logic 5 brake solenoid
- Related but not the same: K22-36899 single-phase brake solenoid
- Related but not the same: 575V brake solenoid options
- Related but not the same: K71-B3PH internal brake solenoid
Technician Note
Brake solenoids are electrical and mechanical parts. A failed brake release can also be caused by wrong voltage, a damaged brake assembly, misalignment, control-board output issues, or wiring damage, so do not assume the solenoid is the only failed item without diagnosis.
Before Ordering
- Read the operator nameplate and confirm 208/230V, three-phase power.
- Confirm the operator uses Logic 5.0 brake hardware and calls for K22-36900.
- Do not substitute a single-phase or 575V brake solenoid.
- Inspect the brake linkage, brake drum, and wiring harness for heat or mechanical damage.
- Have a qualified technician diagnose line-voltage brake circuits before replacing electrical components.
Professional Advisory
This is a high-voltage commercial operator repair part. Power must be disconnected and locked out before service, and all brake wiring should be handled by a qualified commercial door technician.
Questions and Answers
What voltage is the K22-36900 brake solenoid for?
It is used for select 208/230V, 60Hz, three-phase LiftMaster Logic 5 commercial door operator brake applications.
Is K22-36900 the same as the single-phase brake solenoid?
No. K22-36900 is the three-phase version and should not be substituted for K22-36899 single-phase applications.
Can this part fix an operator that hums but does not move?
It may if the brake solenoid is failed, but humming can also come from motor, control, wiring, or brake binding problems that need diagnosis.
Is this used on residential garage door openers?
No. This is a commercial operator brake solenoid, not a residential opener part.
Should a technician install this part?
Yes. Brake solenoid replacement involves line voltage and brake adjustment, so a qualified commercial door technician is recommended.
