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Daikin Warranty Registration: How and When to Register

Registering your Daikin system within 60 to 90 days of installation unlocks the 12-year parts and compressor limited warranty, one of the longest in residential HVAC. Miss that window and your coverage drops to the shorter base term. Here's exactly how to do it and what you need.

How to register your Daikin warranty

1. Gather your information: the model and serial numbers for each component (on the data plate attached to each unit, and on your installation invoice), the installation date, and your installing dealer's details.
2. Go to the official Daikin registration page (linked below) and enter your details. Register each component if prompted.
3. Save the confirmation. Keep the registration confirmation with your proof of purchase, you'll need both if you ever file a claim.

→ Daikin official warranty registration page

Why it matters

Daikin offers one of the longest standard parts warranties in the industry at 12 years including the compressor. A critical caveat unique to Daikin: equipment purchased online by consumers and not professionally installed by a licensed dealer carries no warranty at all. Professional installation plus registration is essential.

What you need to register

• Model number(s), on the unit data plate and installation invoice
• Serial number(s), same locations
• Installation date
• Installing dealer name and information

What if you already missed the registration window?

You still have coverage, just the shorter base term rather than the extended one, so don't write the warranty off. Three things worth doing anyway: register now regardless (some manufacturers accept late registrations or honor them at their discretion, and it costs nothing to try); check whether your state exempts you (California and Quebec, among others, prohibit registration requirements, so the full term applies automatically there no matter when you register); and confirm your installer didn't already register it, dealers often do, and an unregistered-looking system may already be covered. If a major component fails inside what would have been the registered term, it can still be worth asking the manufacturer, in writing, whether they'll honor the extended coverage; goodwill exceptions happen more than people expect.

For full Daikin coverage terms and how to file a claim, see our Daikin warranty guide. Compare across brands in the best HVAC warranties guide.

Registration window and terms verified from Daikin documentation as of 2026 and subject to change. Confirm current requirements on Daikin's official site.