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Read the plate. Check the evidence.

Coleman Serial Number Lookup

Current York-family and earlier Wichita Coleman/Evcon numeric HVAC codes.

Browse Coleman manuals and guides →

Check a documented system

What’s on the rating plate?

Coleman/Evcon HVAC; excludes camping, RV and unrelated licensed products.

Spaces and dashes are accepted. Check O/0 and I/1, and keep any leading zeros.

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.

  • Manufacture date is distinct from installation, purchase and warranty start dates.
  • The date code does not identify a full model, capacity or configuration. Enter the separate model from the rating plate for manual search.
  • Numeric1992 cutover remains unresolved and is excluded. Older numeric rules apply only Wichita units.
  • Earlier Wichita numeric formats are documented as research in this dataset but held from execution until the source chart can be visually revalidated.

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

Source references

York-family HVAC: split year and month letter

hvac

After Oct6,2004, year is assembled from characters2 and4, month is character3 (I,J omitted). Manufacturer chart gives N0L4123456 = October2004. JCI SI0418 is chiller-scoped and corroborates date-code letters; it must not be used to force every chiller into this 10-character residential layout.

Reading your result

Coleman 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.