Magnuson-Moss Warranty Act
Your Water Heater Warranty Is Protected by Law
Since 1975, the Magnuson-Moss Warranty Act, enforced by the Federal Trade Commission, has prohibited manufacturers from voiding a warranty solely because a third-party product, such as Corro-Protec, was used. Installing an aftermarket part does not invalidate a water heater warranty, and manufacturers are not allowed to claim otherwise.
Prohibited actions by manufacturers under U.S. law include:
- Threatening customers with warranty loss for installing an aftermarket part
- Void a warranty solely due to the use of a third-party product
- Requiring customers to use their brand’s parts to maintain warranty coverage
Consumers are fully entitled to maintain their water heaters, including replacing the anode rod with a high-quality alternative like Corro-Protec.
A warranty can only be denied if:
1. The manufacturer can prove that the aftermarket part caused the issue
2. They provide an equivalent part free of charge
Corro-Protec is entirely compatible, safe to install, and used in thousands of homes across North America without impacting warranty coverage.