HVAC Warranty Registration: Miss It, Lose Half

Almost every line in a warranty certificate is something the manufacturer promises. One line is a task handed to you, and that one has a clock on it. Miss it and nothing is voided, nothing is cancelled, and no letter arrives. The certificate simply settles into its other column, the shorter one, and you find out in year seven when a compressor quits.

Seven certificates were opened for this page, covering six brands, all of them documents that ship in the owner's packet with residential equipment. Three of the six brands give you sixty days. Three give you ninety. That split is the first useful fact here, because it means there is no industry deadline to remember and no rule of thumb that will spare you from reading your own paperwork. This page is unlicensed work, and no equipment was inspected for it. What follows is a set of PDFs compared against each other, and against the three statutes that decide where the deadline binds at all.

Sixty days at three brands, ninety at the other three

Everything above was read on 23 August 2026, and every one of those documents covers a named list of model numbers rather than a brand. Trane's outdoor certificate applies to products manufactured on or after 1 March 2024 and lists the model prefixes it covers; the furnace certificate is a different form with a different table, and yours may be neither. The Goodman and Daikin form is narrower still: PWCCLPQE covers evaporator coils only, models CAPE, CAPF, CAPT, CAUF, CHPE, CHPF, CSCF, CAPTA, CHPTA and CHPT, so the condenser sitting outside the same house is on a different certificate. The table is here for the shape of the thing, not as a substitute for the paper in your own folder.

Nothing in the documents themselves flags the difference, partly because no two of them put the number in the same place. Carrier and Bryant hang the ninety off a dagger in a footnote under the warranty table. Trane gives it a heading of its own, Registered Limited Warranty Term and Registration Requirements, several paragraphs into the certificate. Goodman answers it under the question How Long Does Warranty Coverage Last? Rheem never states it as a deadline at all — it appears as condition (b) or condition (e) inside each conditional block on the reverse of the card. Lennox puts it in an asterisked footnote on page 4 of a guide written for dealers. Six brands, and the only two that agree on where to print it are the two owned by the same company.

The second column is not always just double the years

Doubling five to ten is the headline, and on a straight parts warranty that is the whole of it. On several of these documents it is not.

Trane's furnace form is the clearest case. For the models listed in its second block, among them S9V2, S9X1, S9X2, S9B1 and L8V1, the heat exchanger is covered for twenty years if nobody registers and for Lifetime if somebody does. That is not a doubling. It is a different category of coverage, turning on an online form nobody opens.

Bryant's variable-speed card adds a Unit Replacement limited warranty worth reading twice: if the compressor fails during the term, a one-time replacement with a comparable Bryant unit is provided, in addition to the standard parts warranty. Unregistered, the table prints 5. Registered, 10. For subsequent homeowners it prints N/A either way. Registration is not the only condition on it either: warranty condition 9 requires the outdoor unit to be installed with a matching indoor coil certified and listed in the AHRI Unitary Directory, and the supplied filter-drier to be installed per the instructions. Rheem's card carries a structurally identical Ten Year Conditional Unit Replacement Warranty on its (-)A17*****C and (-)P17*****C models, with registration inside 90 days listed as condition (e).

Carrier and Lennox use the window to sell a choice rather than only a length. Carrier's Consumer Choice document says the two options, 10-year parts only or 5-year parts plus 3-year labour, are selected at the time of product registration, are offered only during the first 90 days after installation, and can be swapped inside that window if no claim has been made under the option first chosen. Lennox offers the same trade at 60 days, and its guide explains why the trade exists using its own customer research: when a failure occurs the average cost of repair is 85 percent labour and 15 percent parts, and over 80 percent of the negative calls to Lennox consumer support are about labour charges. Whatever you make of that split, it says which column the manufacturer thinks is worth more.

So the honest way to price the window is not five extra years of parts. It is years six through ten on every part in the box, plus whatever else that particular form has attached to registration. When you are weighing a repair against a replacement on a system you already own, that same figure runs through the repair-or-replace arithmetic from the other side.

Day one may be printed on the unit, not on your invoice

Every window is measured from a commencement date, and the certificates that define that date fall back to the equipment itself whenever the paperwork is thin.

Trane: the commencement date is the date the original installation is complete and all start-up procedures have been properly completed and recorded on the installer's invoice, which must include all model and serial numbers of the installed products. If that was not recorded, the date becomes sixty days after the factory manufacture date as determined by the serial number. Carrier and Rheem both fall back to manufacture date plus ninety days, but on triggers worded slightly differently: Carrier's condition 3 fires if the date of original installation cannot be verified at all, Rheem's clause (b) if it cannot be verified by the installer's invoice, or in new construction by the final occupancy permit or proof of purchase from the builder. Goodman and Daikin use three months after the manufacture date, read from the first four digits of the serial number as YYMM, and exclude California residents from that fallback.

Read the consequence slowly. A unit built in March and installed in September, on an invoice naming no start-up date, may already be five months into a warranty you thought began the week the crew left. The registration window is measured from that same date.

New construction moves the date again, in the same direction at every brand here: coverage begins when the buyer closes on the house from the builder, not when the equipment went in. Trane, Carrier and Goodman each say so in their own wording, and Lennox measures its 60 days from the closing date as well.

What to have in hand before the crew drives away

The invoice decides most of this, and it gets written on installation day or not at all.

• The installer's invoice showing model number, serial number, and the installation and start-up date, in that combination. Trane's certificate asks for all three.
• The warranty certificate itself rather than a brochure page. It carries a form number: ACHP-C454-01WAR, GW-OTDR-2401B, 92-26150-31-36.
• Ask out loud who is registering the equipment, you or the dealer, and on what date. Get the answer before the truck leaves, not in month three.
• Afterwards, the registration confirmation, or the printed warranty certificate Trane says your dealer should hand you once they have done it.
• The match. Rheem excludes condensing units that are not part of a properly matched system as specified by AHRI, and heat pumps not matched per the manufacturer and AHRI. Trane's eligibility list requires the equipment to be part of an AHRI rated and matched system. That is a separate check with its own procedure, which is verifying the pair in the AHRI directory.

Warranty terms sit among the fourteen lines a complete replacement bid should already contain, so most of this can be settled before signing rather than chased afterwards.

One more clock, easy to miss because it sits far from the others: Trane requires all claims under the limited warranty to be filed within 90 days of the failure date.

Where the requirement does not bind at all

Four jurisdictions matter here, and no two of these seven documents name the same set. Carrier's card, Bryant's card and Lennox's guide name California and Quebec. Goodman's names California, Florida and Quebec. Trane's outdoor certificate names Florida and nothing else, and Trane's furnace certificate names none of the four. Rheem's parts card names none of them either — its single California line is a service address in La Mirada, not a carve-out, and the Florida and Georgia wording Rheem publishes sits in separate documents its warranty card does not point to. Not one of the seven mentions Georgia.

California is the oldest. Civil Code section 1793.1(a)(1) requires that any warranty or product registration card or form, including an electronic online form, carry clear and conspicuous statements that the form is for product registration and that failure to complete and return it does not diminish the buyer's warranty rights. Carrier's answer to that is to make the 10-year parts warranty the default for unregistered product in California and Quebec, with the labour swap still available for 90 days.

Florida went further, in statute, and this is where the paperwork stops agreeing with itself. Section 559.956(4) says a manufacturer's warranty of an HVAC system or a component of the system may not be in any way conditioned upon the product registration, and the surrounding subsections transfer the warranty automatically to a new owner with no fee charged for the transfer. Then read subsection (5), and read the section's title with it. The section is headed Transfers of heating, ventilation, and air-conditioning system manufacturer warranties, and it applies where "a sale of a residential property that includes an HVAC system as a fixture to the property occurs on or after July 1, 2024." A conveyance. Not an installation.

The manufacturers have not landed in the same place. Rheem's June 2024 legislative update prints both readings on one page: its summary column says the law "is effective on real property conveyances on or after July 1, 2024," while the column beside it says products "installed on/or after July 1, 2024, will receive warranty coverage based on the longest coverage offered on each model's Limited Parts Warranty." Every question in its FAQ is then asked about installation dates, and question 3 answers flatly that after 1 July 2024 there is no benefit to registering in the state. Trane's outdoor certificate leans the other way: its Florida Residents Only paragraph opens with an unconditional date rule, then reproduces the statute's applicability clause, sale trigger and all, almost word for word. Neither document tells a Florida owner which date governs a unit installed in, say, May 2024 in a house that has not changed hands since. If an installation date and a closing date straddle that boundary in your case, that is a question for the manufacturer's warranty line and possibly for a lawyer, not for a website.

Georgia is the new one, and it is the one this page can show you least of. Act 285, from SB 112, enacts Article 37 of O.C.G.A. Chapter 10-1. The Act's own text was not retrievable on 23 August 2026: the General Assembly's bill-document endpoint returned a server error rather than a file, and the codified article had not yet appeared in the free mirrors that carry Title 10. So what follows is the Legislative Counsel's wording, not the statute's, and that distinction is worth keeping in view.

The Counsel's 2025 summary of general statutes records that "any manufacturer's, distributor's, or retailer's warranty of an HVAC system shall be effective on the date such system is installed by a licensed contractor and shall not be conditioned upon the registration of such system," effective 1 January 2026 and applicable to any warranty "manufactured and issued, sold, or offered for sale by a manufacturer, distributor, or retailer on or after such date." Hold those two halves against each other: the rule runs on an installation date, the applicability clause on when the warranty was issued or sold. A system installed in February 2026 under a warranty printed in 2025 sits between them.

Rheem's Georgia notice prints a third combination again: the law "applies to real property conveyances and installation of HVAC systems on or after January 1, 2026," and a manufacturer's warranty "is effective from the date of installation when performed by a contractor licensed under the Georgia State Construction Industry and Licensing Board." Conveyance, installation and issuance in one paragraph. Until the codified article is readable, a Georgia installation near that boundary is a question for the manufacturer and a Georgia lawyer, not for this table.

That the certificates are silent on Georgia is not a defect in them. They were typeset in 2024 and 2025, before it was law. What matters is where a current answer lives instead. Lennox's support answer on the 60-day deadline, last modified 19 March 2026, carries a list its own 04/2025 guide does not: California, Florida, Georgia for units installed on or after 01/01/26, and Quebec. A PDF is a snapshot of the day it was printed. Where the answer turns on a statute, the manufacturer's live page is the more current of the two, and when they disagree the older one is usually just old.

Texas belongs in a footnote rather than on the list. It does not prohibit registration conditions, but Carrier and Bryant both carry a Texas clause under which a subsequent owner's duration matches the original owner's, ten or five based on registration, and Goodman's registered term runs a flat ten years in Texas and Florida instead of being tied to continued residence.

Checking that it was actually done

Registration is one of the few warranty conditions you can verify from your own table, months later, for nothing.

Carrier publishes a warranty lookup that takes a serial number and returns the coverage on the record, with a caution printed on the page that results display general parts warranties only and that other warranties tied to the record may differ in length. Goodman redirects goodmanmfg.com/warranty to a warranty-lookup page, and from there to an entitlement lookup that answers by serial number rather than handing over a certificate.

That lookup is also why the Goodman document quoted here comes with a caveat. Goodman does hold the same part number on its own server, under /docs/default-source/product-documents/warranty/pwcclpqe.pdf, but that path is served through a JavaScript viewer that returns a page rather than a file. So the Goodman and Daikin wording quoted throughout this page was read from a dealer-hosted copy of the same part number and the same 07/2024 edition. It is a mirror, not the publisher's copy, and the serial-number lookup is the thing to trust over either of them. Trane offers a registration form and a look-up on its warranty and registration page, and answers the delegation question in its own words: dealers do often register on the customer's behalf, they should hand over a printout of the warranty certificate afterwards, and you should never assume your dealer is registering your product.

If the lookup shows five where you expected ten and the window has closed, the first thing to establish is whether your state was entitled to ask in the first place. The second is what the installing dealer's own labour warranty says, which is a separate promise from a separate party and appears on none of these certificates.

The clause that reads "own and reside"

The last thing registration decides is who the coverage follows, and here the documents diverge most sharply for anyone who does not live in the house.

Goodman and Daikin state it at the top: the warranty applies to units installed in owner-occupied residences, different warranties apply to units installed in residences not occupied by the owner, and units in residences not occupied by the owner appear again in the list of what the warranty does not cover. Its registered term then lasts as long as the original registered owner or spouse own and reside in the residence where the unit was originally installed, up to ten years, except in Texas and Florida where it runs a flat ten. Rheem's unit-replacement warranty requires an owner-occupied single family dwelling, still owned by the original purchaser, in the original installation location, while its parts warranty defines a residential application broadly enough to take in apartments, condominiums and duplexes. Bryant's unit replacement is available to the original purchaser in owner-occupied single family residential applications only, and never to a subsequent homeowner. Trane writes its base warranty for residential and multi-family application, meaning personal, family or household use, and makes it transferable to a subsequent owner within ninety days of the closing date, subject to a transfer fee it publishes separately.

For a rental, then, the registered upgrade can be worth the full ten years or close to nothing, and the sentence that decides it is never in the sales literature. It sits under the heading asking what type of installation the warranty applies to, three inches above the part everyone reads.