Gearbox speed sensor for DeLonghi ETAM coffee machines

What this sensor does

The gearbox speed sensor is an electronic component fitted to the brewing unit's drive mechanism in DeLonghi ETAM coffee machines. It monitors the rotation of the gearbox that powers the brewing process, sending signals to the control board so the machine can accurately track and coordinate each brewing cycle.

Signs it may be failing

When this sensor wears out or becomes faulty, the coffee machine may display error messages, stop mid-brew, fail to complete the grinding or brewing cycle, or refuse to start altogether. Inconsistent or erratic behaviour of the brewing unit is often traced back to a malfunctioning speed sensor, since the control board loses reliable feedback from the gearbox.

Choosing the right part

Before ordering, check the compatibility table listed by the product to confirm it matches your specific DeLonghi ETAM model.

Compatible with

• ETAM29.510.B Autentica
• ETAM29.510.SB Autentica
• ETAM29.620.SB Autentica Plus
• ETAM29.660.SB Autentica Cappuccino
• ETAM29.666.S Autentica Cappuccino
• ETAM29.666.T Autentica Cappuccino
• ETAM36.365.M PrimaDonna Xs
• ETAM36.365.MB PrimaDonna Xs
• ETAM36.366.MB PrimaDonna Xs