Lennox Warranty: Cost, Coverage and Plans (2026)

Lennox warranty coverage

Lennox includes a basic limited warranty on its products. Warranty certificates are posted on the company’s website and may differ based on the model and the installation date (before or after Feb. 8, 2022).

The basic limited warranty for products installed after Feb. 8, 2022, in residential settings covers the costs associated with repairing or replacing parts. For example, with the Dave Lennox Signature Collection warranty, the compressor and parts have 10-year coverage. The heat exchanger is covered for the unit's lifetime for the original purchaser only. Otherwise, it’s covered for 20 years for subsequent owners.

Lennox warranty coverage breakdown

Below is a breakdown of warranty coverage for three Lennox product lines.

Lennox Warranty Your Way program

Labor costs don’t come with the basic limited warranty. However, Lennox provides the option to extend the warranty or add labor cost coverage on eligible equipment through the Warranty Your Way program.

You can get this free warranty extension by registering your product within 60 days of installation. The program lets you choose whether to extend warranty coverage on certain components and/or add labor cost coverage.

What voids Lennox's warranty coverage?

In certain circumstances, Lennox will not cover the costs of repairs, even if the manufacturer’s warranty has not yet expired. For instance:

• The company will not provide replacement parts if the air conditioning unit has moved from its original installation location.
• The unit must have been installed and serviced properly by a licensed HVAC installer or contractor.
• Damage resulting from improper use, accidents, acts of nature or unauthorized modifications to the unit will not be covered under the warranty.
• The warranty may be voided if the system has not received regular maintenance, such as filter replacements and annual inspections, as recommended by Lennox.

The warranty certificate includes a full list of conditions and limitations to coverage, so it is important to read that document carefully before installation.

How to register your Lennox HVAC equipment

To register your Lennox product, visit the company’s “Product Registration” page and click on the link for the “Warranty Your Way Registration Portal.” Here’s the information you’ll need to get started:

• Serial and model number
• Installation date
• Email address for coverage confirmation
• Customer number (if you’re a dealer)

If you qualify for an extended limited warranty, you’ll need to provide the serial number, model number and brand of other accessories purchased for your system.

Lennox does not require product registration to get warranty coverage. However, if you purchase an eligible Lennox product and register within 60 days of installation, you could receive free extended warranty coverage.

How to check your Lennox warranty coverage online

You can look up your Lennox warranty coverage online by following these steps:

1. Visit the official Lennox website and find the warranty lookup page.
2. Locate your product’s serial number, usually on a label on the unit.
3. Enter this information into the warranty lookup portal.
4. Submit the details to view your warranty status.

This will show you the type of coverage, remaining period and any terms or limits for your Lennox system.

Lennox warranty cost

There is no additional cost for a Lennox manufacturer’s warranty (it’s included with your original purchase), but the company does offer service plan coverage. The prices for extended coverage vary depending on the plan.

Lennox extended warranty

In addition to the free warranty extension program, Lennox offers an extended service agreement plan that covers costs not included in the basic manufacturer’s warranty, like labor, refrigerant and trip charges.

Coverage periods range from three to 12 years, and prices vary depending on the plan. You can contact an authorized Lennox dealer for more information on this program.

Factors to consider when buying an extended warranty

Unlike other extended warranties that just prolong the manufacturer’s warranty, the Lennox extended warranty is more of a service plan. It includes regular maintenance in addition to service calls for repairs.

Lennox does not publicly disclose plan costs, so you’ll need to contact a Lennox dealer for pricing information. Compare those prices with typical HVAC yearly maintenance costs to determine if the plan is worth it.

» LEARN: HVAC warranties: coverage and cost

How to file a claim for your Lennox HVAC equipment

You must contact an authorized Lennox dealer or an HVAC technician to file a warranty claim. Keep in mind that most warranty claims should be submitted within 45 days of product failure, so don’t wait to call and request an assessment.

The Lennox standard warranty does not cover labor costs (unless you’ve registered your product and explicitly added it on), so be prepared to pay a service charge for diagnostics.

1. Locate your warranty documentation and proof of purchase, including the date of installation and the name of the licensed contractor who installed the unit.
2. Use the dealer locator on the Lennox website to identify an approved service provider near you.
3. Contact the dealer or technician and describe the issue in as much detail as possible. They will schedule a diagnostic visit to assess the problem and determine whether it falls under warranty coverage.
4. During the diagnostic visit, the technician will inspect the unit and confirm whether the failure is covered. Be prepared to pay a service or diagnostic fee at this stage.
5. If the claim is approved, the technician will submit the warranty claim to Lennox on your behalf and order any necessary replacement parts.
6. Once the replacement parts arrive, the technician will complete the repair.
7. Request a written summary of the work performed and confirm that the repaired unit is functioning correctly before the technician leaves.

Pros and cons of Lennox warranties

You aren’t required to register your Lennox product to get warranty coverage. This may be helpful if you’ve purchased a home with an existing Lennox system. However, the company does incentivize product registration by offering a free extended warranty when you register.

A drawback is that labor costs don’t come with basic coverage, which likely accounts for a large portion of repair costs. In addition, the Lennox warranty on select models only covers parts for five years. For comparison, some of its competitors include 10-year coverage on parts.

Lennox warranty vs. home warranty alternatives

HVAC repair and replacement costs are typically some of the most expensive for homeowners. You could spend between $160 and $530 or more to repair your unit and $5,000 or more to buy a new unit. If you don’t have adequate savings to prepare for these unexpected expenses, it could cause a significant financial setback.

A home warranty can be useful in these situations. Home warranties typically cover the repair or replacement costs of HVAC systems like air conditioners and heat pumps.

Tips for maximizing Lennox warranty coverage

There are ways you can maximize your warranty coverage. Some tips:

• Contact a service technician promptly for repairs.
• Register your Lennox product within 60 days of installation.
• Read the warranty certificate and pay attention to exclusions and limitations.
• Always have your HVAC unit serviced by a licensed professional.
• Keep all installation documentation, like receipts or invoices, for your records.
• Consider a home warranty if your Lennox manufacturer’s warranty is about to expire.

» MORE: Is a home warranty worth it?

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