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HVAC Equipment Registration Matters 

One of the most common issues we see in Knoxville is unregistered HVAC equipment—something that can significantly reduce your warranty coverage. 

At A-1 Certified Service, we register every system we install with the manufacturer to ensure you receive the full parts warranty available. Without registration, most systems default to a 5-year parts warranty. When properly registered, you can receive the maximum coverage offered by the manufacturer. 

What Homeowners Should Know About hvac warranties  

  • Most manufacturers require registration shortly after installation (often within 60 days)  
  • Registration typically requires an email address and system details  
  • If you sell your home, warranty coverage may revert unless properly transferred  
Extended Warranty Options

Extended labor warranties (often called Extended Service Agreements) can cover repair labor—and sometimes refrigerant—beyond the standard warranty. Some plans are transferable, depending on the terms.

Check Your HVAC Warranty Registration

How to Protect You and Your HVAC Unit 
  • Get it in writing: Ensure your installer includes registration in your contract  
  • Ask for proof: Request confirmation after installation  
  • Register it yourself: Use your system’s model and serial numbers to verify or complete registration online  

Why HVAC Registration Gets Missed 

This issue isn’t usually intentional. It often happens due to: 

  • Administrative oversight or poor internal processes  
  • Lack of accountability or follow-through  
  • Misunderstandings about who is responsible  
  • High installation volume in growing markets like Knoxville