Will ACFlush void the Manufacturer's Warranty?

The Magnuson-Moss Warranty Act (15 U.S.C. § 2302(c)) prohibits manufacturers from conditioning warranty coverage on the use of specific branded parts, services, or chemicals. A manufacturer cannot void a warranty or deny coverage simply because a third-party product such as ACFlush was used.

Warranty coverage may only be denied if the manufacturer can provide concrete evidence that ACFlush directly caused the specific failure.

Key Legal Protections:

Burden of Proof
The manufacturer must prove direct causation. Speculation, assumptions, or the mere presence of a third-party product is not sufficient grounds to deny warranty coverage.

Tie-In Sales Prohibition
Manufacturers cannot require the use of their branded chemicals, parts, or service providers unless those products or services are provided free of charge or approved through a formal FTC waiver.

Contractor and Equipment Owner Protection
This federal law protects both HVAC contractors and equipment owners from warranty denial based solely on the use of independent service products such as ACFlush.

Product Liability Protection
EnviroTemp maintains product liability insurance. In the unlikely event that a system fault is proven to have resulted directly from ACFlush, this coverage provides additional protection for both the contractor and equipment owner.

Bottom Line

ACFlush does not void manufacturer warranties under federal law. Warranty coverage can only be denied if direct causation is proven. The burden of proof rests with the manufacturer—not the contractor or equipment owner.