Free check · manufacturer-page sourced
Your warranty is half the size until you register it.
On most major HVAC brands, an unregistered unit carries a 5-year parts warranty; registered in time, it’s 10. The window is 60 or 90 days from installation — and some states waive the requirement entirely. Check yours:
The windows, by manufacturer
| Brand | Window | What registration is worth |
|---|---|---|
| Lennox | 60 days | 5-yr parts unregistered → 10-yr registered (12-yr Signature) |
| Carrier / Bryant | 90 days | 5-yr parts → 10-yr (Carrier offers a labor-option election) |
| Trane / American Standard | 60 days | "typically" 5-yr → 10-yr (Trane’s own wording) |
| Goodman / Amana | 60 days | 5-yr → up to 10-yr (original owner, original home) |
| York | 90 days | 5-yr parts standard → 10-yr + lifetime compressor/HX on select models |
| Rheem / Ruud | varies | The window differs by certificate (60 or 90 days) — read the unit’s own certificate |
Sources — and what we refuse to claim
Every window and coverage figure above comes from the manufacturer’s own current warranty page or certificate (verified July 2026). What we refuse: A.O. Smith terms (their certificates could not be verified — read yours); Rheem/Ruud as a single number (it varies by certificate); and every “X% of homeowners lose their warranty” statistic in circulation — none has a primary source. State exemptions are per-manufacturer with effective dates, not a blanket rule.
We chase these windows automatically
Morthn runs the back office for service businesses. Every installed unit gets its registration window tracked against the manufacturer’s actual terms — chased before it closes, skipped honestly in exempt states, and for water heaters, the install-date proof captured on day one, because that’s what actually decides the claim.
Want every install's window tracked and chased for you?
Morthn tracks each installed unit against its manufacturer's real registration deadline, chases it before it closes, skips it honestly in exempt states, and captures the install-date proof water heaters need. Drop your email for the registration playbook, or book 20 minutes and we'll wire it to your job flow.