A. O. Smith manufactures water heaters, water filtration systems and heat pumps for homes and businesses, supporting hot water supply and water treatment needs.
A. O. Smith manufactures residential and commercial water heating and water treatment products, including tankless water heaters, filtration systems and heat pumps.
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Match the full model number on your product’s rating plate or label to the manual title and models covered. Similar product names may have different installation and maintenance requirements.
Have the model number, serial number, installation date and a description of the issue ready. For water heaters, retain installer and dealer details for service or warranty inquiries.
The AO-US-200 filter guide lists U.S. support at +1 877-333-7108. For other products or regions, use the contact information in your own manual or the appropriate regional brand website.
The provided replacement guide recommends replacing AO-US-200 filters every six months or every 500 gallons of use. Follow the model-specific guide for cartridge replacement and flushing.
Use the official water heater warranty verification page and consult your product’s warranty document. Coverage depends on the model, application and installation conditions; contact your dealer for claim assistance.
The supplied instructions require installation and service by a qualified installer, service agency or gas supplier. Follow the model-specific manual and applicable local codes.
