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Official Bosch warranty & serial services

Read the plate. Check the evidence.

Bosch serial number lookup: household FD and Home Comfort

Bosch household appliances use a separate FD date field; Home Comfort HVAC and water heaters have other serial systems. Confirm the product family and complete label before selecting a format.

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Check a documented system

What’s on the rating plate?

BSH Bosch home appliances with a four-digit FD date code.

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.

Known product context (optional)

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.

Explore a sourced example:

Scope matters

Supported formats
and historical limits.

  • A serial date code does not normally encode the full model number. Read the separate model/E-Nr/product code on the rating plate.
  • Bosch HVAC and water-heating products use other serial formats and are outside this FD decoder.

Research reviewed October 16, 2026. This independent tool applies published rules and retains unresolved years and model candidates.

Source references

BSH four-digit FD manufacture date

Bosch and Gaggenau appliances with a separately labelled four-digit FD date code; Thermador applicability is a BSH-family interpretation supported by Thermador FD-labelled manuals.

FD is a production-date field, not the unique serial. Enter the four digits labelled FD; E-Nr is the model. The 2020 rollover is explicitly shown by BSH. The old +1920 formula also covers historic codes 40–99 (1960–2019); unknown future and unsupported codes are not guessed.

Bosch Home Comfort HVAC / water heaters: 3-character date table

Bosch Home Comfort heat-pump, boiler and water-heater serials whose rating label matches the positions5–7 date-code scheme shown in BTC310004101K July2026. Explicit system selection required.

The manufacturer table maps252 individual codes for2010–2030. No arithmetic/alphabet extrapolation. Date code is at positions5–7 after removing separators; factory/model suffixes remain unresolved. Codes in future years must be rejected by the current calendar guard. Does not apply to Bosch household FD numbers or all Bosch Home Comfort serial layouts.

Confirm this exact numbering layout from the equipment label and Bosch Home Comfort reference guide. Select only for the published 3-character code system.

Reading your result

Bosch lookup questions

Why does the year code match more than one year?

Some systems reuse letters or only encode the last one or two year digits. Every supported interpretation is retained. A decade supplied from reliable records can narrow the reading; the tool does not automatically pick the newest year.

Does the serial identify my exact model?

Usually the model is a separate plate field. Where published serial ranges actually identify a model, the result shows model candidates and links to their manuals. Overlapping ranges remain ambiguous.

Can I share the result?

After a lookup, the address includes the serial in a fragment beginning with #serial=. Use “Copy share link” to share the serial and selected context. Opening the link runs the same lookup. The fragment is not a query-string result page.