A suffix can identify a different version with different instructions, racks or components. A series name or front-panel appearance is not always a complete reference.
Understanding this situation
Use the actual rating label or original documents without moving a heavy fitted appliance merely to search for a hidden sticker. Retailer order numbers should be kept separate from manufacturer identifiers.
A useful next step
Provide the full readable information and say if any part is missing. Do not order a dispenser, pump or rack solely because an online picture resembles yours. Compatibility and the required repair need confirmation.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.