Electronic circuit board LF D390022

An electronic control board governs every function of a superautomatic coffee machine. It receives signals from the buttons, sensors and motors, then coordinates the grinder, brew group, pump and heater to produce each drink. Without the board, the machine cannot start, grind, dose, tamp, extract or dispense milk. This LF board is the exact replacement for De'Longhi ECAM 21 models, ensuring the original sequence of operations is restored.

The operator selects a drink programme on the front panel. The board reads the choice, activates the grinder to deliver the correct amount of coffee, then signals the brew unit to tamp and lock. Hot water is pumped through the coffee at the set pressure and temperature, while the board monitors flow and time. Milk frothing follows the same controlled sequence: the board opens the steam valve, regulates the air intake and shuts off at the programmed volume. Every step is timed and adjusted by the board to match the original machine settings.

The board is a printed circuit assembly with surface-mounted components, connectors and a protective coating. It plugs directly into the machine's wiring harness, replacing the faulty unit without modification. No tools beyond a screwdriver are required for access and installation.

This board fits De'Longhi Magnifica S and ECAM 21 series superautomatic coffee machines, including models ECAM20.110.B, ECAM21.110.B, ECAM21.116.B, ECAM21.117.B, ECAM22.110.B, ECAM22.110.SB and ECAM22.113.B, with or without the S11 suffix.

The part is listed in the catalogue under coffee machine spares and electronic components.