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Official Pinnacle warranty & serial services

Read the plate. Check the evidence.

Pinnacle Boiler Serial Number Lookup | Peerless

Here Pinnacle means the Peerless/PB Heat boiler line.

Browse Pinnacle manuals and guides →

Check a documented system

What’s on the rating plate?

Peerless Pinnacle boiler rating plates only.

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.
  • Pinnacle is also used by other heater and spa makers. Confirm Peerless/PB Heat before using this rule.
  • Model series is user-confirmed from Pinnacle branding, not recovered from date digits.

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

Source references

Peerless boilers: full year/month suffix

boiler

Peerless manufacturer FAQ explicitly decodes 123456-201003 as March2010. Strip dashes/spaces only after retaining full serial for display; suffix is YYYYMM. Scope boilers; Peerless pumps/ranges/faucets are unrelated. Older MMYY and plain numeric families remain research-only until a primary-era chart is verified.

Reading your result

Pinnacle 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.