Siemens 403-2B 221328 02.88 Control Board

Siemens 403-2B 221328/02.88 Control Board is a Siemens printed circuit board (PCB) identified by the part numbers 403-2B and 221328/02.88. Verified listings describe it as a Siemens Control Board 221328/02.88 and as a 403-2B 02.88 Pcb Circuit Board, confirming its role as a controller module used in compatible Siemens appliances. The 02.88 designation signals a specific revision within the model family, a detail echoed in vendor references for this exact part. Exact connector layouts, mounting hole locations, and electrical interfaces can vary by appliance model, so compatibility should be confirmed against the specific Siemens make and model you are servicing. Functionally, this PCB provides the appliance’s control logic, interfacing with user inputs and coordinating outputs that drive cycles, timing, and safety interlocks according to the original design. When the model match is correct, the board integrates with the appliance’s control system to execute settings chosen by the user and manage sequence operations as intended by Siemens engineering. This part is commonly referenced in spare-part listings under the identifiers 403-2B and 221328/02.88, reflecting its role as a dedicated control board within certain Siemens equipment families.