ACFlush is safe, legal, and protected.
The Magnuson-Moss Warranty Act is a U.S. federal law enacted in 1975 to govern consumer product warranties. It protects consumers from deceptive warranty practices and ensures fairness when third-party products or services are used during repairs.
ACFlush will not void warranties
Under the Magnuson-Moss Warranty Act, HVAC manufacturers cannot deny a warranty simply because the homeowner used ACFlush as part of a repair — unless they can prove that ACFlush directly caused the damage.
The burden of proof is on the manufacturer
If a manufacturer claims a warranty is void due to ACFlush, they must provide concrete evidence of how ACFlush caused damage — not merely cite the use of a third-party product. This is a high burden of proof, and manufacturers rarely meet it.
Same protection as aftermarket car parts
Just like a car owner can use an aftermarket oil filter or brake pad without voiding their car warranty, HVAC contractors can use ACFlush in a repair without violating warranty terms.
And if something did go wrong
We're extremely confident in ACFlush, but in the rare event a system fault is proven to have resulted from our product, we carry product liability insurance — adding another layer of protection and reinforcing your confidence in every repair.
Confidence-building talking points.
Use the following statements when a contractor raises warranty concerns:
"Using ACFlush will not void a manufacturer's warranty — U.S. law protects that."
"The manufacturer would need to prove ACFlush caused a problem, not just say so."
"This is covered under federal law, the Magnuson-Moss Warranty Act — we can send you the documentation if you'd like."