De Dietrich 200004060 Diematic M3 placa de relés

This is an electronic control board, specifically a relay board, for De Dietrich boilers that use the Diematic M3 control system. Parts of this type are the primary circuit board that manages the operating and safety logic of the boiler. They govern the ignition sequence, flame monitoring, fan and pump control, and communication with external thermostats or controllers. The board receives signals from the boiler temperature sensors, pressure switches, and the flame signal, and in turn drives the gas valve, ignition transformer, circulating pump, and any three-way valve or modulation actuator. Electronic control boards such as this one are matched to a specific boiler model or series. Although the board’s function is analogous to a conventional burner control box, it is not interchangeable across different boiler models. The control logic, safety timings, and connector patterns are set by the manufacturer for the particular appliance. When replacing a control board of this type, the correct model designation must be verified against the boiler’s data plate. Using a mismatched board can cause incorrect operation or compromise the safety timing of the ignition and combustion sequence. This relay board carries the manufacturer codes 200004060 and 336.568.008, and its catalogue article is 336.568.008.