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Registering Your New Unit Warranty: Step by Step
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By
Michael Haines
- Jul 7, 2026
A plain-English walkthrough for Goodman, Daikin, and MRCOOL warranty registration, plus the details you should have in hand before you start.
Register your new inverter unit warranty because most manufacturers extend the standard coverage terms only when you complete online registration inside a short deadline window, typically within 60 days of installation. Miss the window and your coverage often drops to a shorter base warranty. Below are the current registration steps for Goodman, Daikin, and MRCOOL, with links to each brand's official portal. Always check current manufacturer terms.
Your unit is a big purchase, and modern inverter equipment is more sophisticated than the units it replaced. If you want the deeper backstory on why these units are worth protecting, our inverter air conditioner guide covers the technology in detail. This article is the paperwork half of ownership: a short, one-time task that can make a real difference if you ever need a warranty part years down the road.
Registration is how the manufacturer ties your specific unit, by serial number, to you as the original owner and to a verified installation date. Without that record, they often default your coverage to the shorter base warranty. Registering unlocks the longer parts and compressor terms the brand advertises, and it gives you a documented paper trail if a claim ever comes up.
A few points worth keeping in mind:
- Warranty year lengths vary by model, series, and homeowner status. The exact number of years for parts, compressor, or unit-replacement coverage depends on the specific model you own. Check current manufacturer terms rather than relying on a number you read online.
- Registration is free. If a site asks for payment to "register" your unit, you are on the wrong site. Go directly to the manufacturer's domain.
- The original owner clock starts at installation, not purchase. If your equipment sat in storage for a few weeks, the deadline typically counts from when it was installed and commissioned.
- Rental properties, flips, and second owners are often covered under a shorter transferred warranty. Read the fine print if you're not the person living in the home.
Goodman offers extended parts and, on qualifying models, extended compressor coverage to the original registered owner when registration is completed inside the deadline window. Their official registration portal handles the process. If you skip registration, coverage typically defaults to the shorter base warranty period stated on the product literature. Always check current manufacturer terms.
Visit goodmanmfg.com/support/product-registration directly. Bookmark it if you plan to register more than one unit.
You'll need a valid email address. This account also stores your registered units so you can look them up later if you lose paperwork.
These come off the data plate on the outdoor unit and, if applicable, the indoor coil or air handler. Every piece of equipment (condenser, coil, air handler, furnace) gets registered separately.
Name and contact info of the licensed HVAC contractor who installed and commissioned the unit. Save your invoice as your proof of installation date.
Download or screenshot the confirmation screen and save the confirmation email. Both count as proof of registration if a claim is ever disputed.
Daikin, including the Daikin FIT inverter lineup, extends full parts coverage (and on qualifying models, unit-replacement coverage) to the original registered owner when registration is completed on time. Their North American residential air conditioners and heat pumps use R-32 refrigerant, and the registration portal is separate from Goodman's even though the two brands share a parent company. Always check current manufacturer terms.
Visit daikincomfort.com/owner-support/product-registration. This is the correct portal for residential Daikin and Daikin FIT equipment sold in North America.
Register your name, address, and email. Daikin uses this account to link every future warranty claim to you as the original owner.
Enter the outdoor condenser, indoor coil or air handler, and any accessory equipment separately. Serial numbers are on the rating plate; take a phone photo of each plate before installation is completed so you're not squeezing behind the unit later.
The date should match the commissioning date on your invoice. Include the installing contractor's business name and license or contact info.
Daikin issues a downloadable warranty certificate after registration. Save the PDF locally and print a copy for your home file.
MRCOOL is unique in the AC Direct lineup because much of it (the DIY series in particular) is designed for homeowner installation. That means professional installation is not required to keep the warranty valid on MRCOOL DIY products. MRCOOL asks that units be registered inside their deadline window from installation to unlock full warranty benefits, with some flexibility from purchase date for select cases. Always check current manufacturer terms.
Visit mrcool.com/product-registration. Use the same email address you used when you purchased if possible, so your records stay linked.
For DIY mini splits, the serial number is on the outdoor condenser rating plate. For multi-zone units, each indoor head has its own serial number. Register the outdoor unit and each indoor head separately when prompted.
For MRCOOL DIY products, self-installation is allowed and does not void the warranty. For MRCOOL's professional-only lines, a licensed installer's information is required. Match the form to how the unit was actually installed.
MRCOOL typically asks for a copy of your invoice or purchase receipt at registration. Keep the file (or a photo of the paper receipt) in the same folder as your warranty confirmation.
You'll receive a registration confirmation email. Save it. If you enroll in any MRCOOL protection or extended warranty program, save that documentation together with your registration confirmation.
Every brand's form asks for the same core information. Gather these before you open the registration portal and the whole task takes under fifteen minutes:
| Item | Where to Find It | Why It Matters |
|---|---|---|
| Model number | Rating plate on outdoor unit and indoor coil / air handler | Ties registration to the exact equipment you own |
| Serial number | Same rating plate, usually just below the model number | Unique to your unit, used for every future warranty claim |
| Installation date | Installer invoice or DIY commissioning date | Starts the warranty and registration deadline clock |
| Installer info | Contractor's business card, invoice, or license number | Required for pro-install lines; MRCOOL DIY exempt |
| Proof of purchase | AC Direct order confirmation or invoice | MRCOOL and some Daikin claims request this |
| Homeowner contact info | Your name, service address, email, phone | Links you as the original registered owner |
Before your installer leaves, snap a phone photo of every rating plate on every piece of equipment. Rating plates get scratched, faded, or buried behind ductwork over time, and a clear photo saved to your cloud drive is worth a lot ten years from now.
Once you've registered, the last step is boring but important: keep everything in one place. A dedicated folder (physical or digital) with your invoice, registration confirmations, warranty certificates, rating-plate photos, and any annual maintenance receipts is worth its weight in gold if you ever need to file a claim years from now.
- Purchase invoice from AC Direct or your dealer.
- Installation invoice from your HVAC contractor, or your DIY commissioning notes if you installed an MRCOOL DIY yourself.
- Registration confirmation emails from Goodman, Daikin, or MRCOOL.
- Warranty certificate PDF if the manufacturer issues one (Daikin does).
- Rating plate photos for each piece of equipment.
- Annual maintenance records. Many manufacturers require proof of regular maintenance to honor certain claims. A yearly tune-up receipt from a licensed technician is enough.
If you'd like to see which inverter models AC Direct currently stocks, you can shop inverter AC units and compare specs before you buy. Registration terms differ slightly by model, so it's worth confirming the details on the manufacturer's portal for the specific unit you're considering.
All three manufacturers currently use a 60-day registration window from the date of installation for most residential equipment, and MRCOOL offers some flexibility from the purchase date on select products. Deadlines can change, so confirm the exact window on the manufacturer's official portal for your specific model before installation.
If you miss the registration window, your coverage typically defaults to the base warranty period stated in the product literature, which is usually shorter than the extended terms registered owners receive. The unit is still under warranty, but for fewer years. This is why registering promptly after installation is worth the ten minutes it takes.
No. MRCOOL DIY products are specifically designed for homeowner installation, and self-installation does not void the warranty on those DIY lines. Non-DIY MRCOOL lines and all Goodman and Daikin equipment do require licensed professional installation to maintain warranty coverage. Match the installation type to the product line you actually purchased.
Registration is tied to the installation date, not the purchase date, so most manufacturers ask you to wait until the unit is installed and commissioned before registering. If your equipment will sit in storage for a while, save your purchase invoice and register within the deadline window once installation is complete.
Warranties often transfer to a subsequent owner, but usually at a shorter term than the original registered owner enjoyed. Each brand has its own transfer procedure and paperwork. Contact the manufacturer directly before or shortly after the sale to initiate a transfer, and check current manufacturer terms for the specific model involved.
