Grinder Automatic Stop Doser 21A Micro-switch

Grinder Doser Automatic Stop Micro-switch (21A)

This 21A micro-switch tells an automatic-dosing grinder when to stop dispensing coffee, based on the doser chamber cam. It's the same underlying part used across the Astoria-CMA K-series grinder assembly and the Compak and Wega grinders that share that platform.

SPECIFICATIONS

• Rated: 21A micro-switch

COMPATIBILITY

• Fits: Astoria-CMA K6 grinder assembly; Wega K6 grinder assembly
• Fits: Compak K3, K3 Elite, K5, K6, K6 Barista Professional, K6/K6 Telescopic, K6 Silenzio/K6 Silenzio T, K8 Silenzio/K8 Silenzio T, and K10 Conic/K10 Conic T/K10 Conic WBC models
• Works with: automatic doser stop/timing mechanism

INSTALLATION

Moderate difficulty, involves accessing the doser cam assembly and reconnecting wiring; a qualified technician is recommended if you're not comfortable working inside the doser body.

PRO TIPS

• If your doser grinder won't stop dispensing automatically (or cuts off immediately when it shouldn't), worn or pitted switch contacts here are a common culprit, test for continuity with a multimeter before assuming the timer or motor is at fault.