For household appliances, enter the four digits labelled FD; the E-Nr/model and unique serial are separate. For the documented Home Comfort HVAC/water-heater system, enter the complete equipment serial and select that exact system under Known product context. Do not enter only its three-character date segment.
Checks ENERGY STAR model records and searches manuals separately from the serial. Certification records do not establish this unit’s manufacture date.
Choose a system only when it matches the product family and its documentation. A purchase year or a manual’s publication date does not establish a manufacturing date.
Full Bosch lookup & label guide · Manuals+