AO Smith offers well-designed water heaters that provide a reliable hot water supply throughout the home. However, these water heaters are complex pieces of equipment with many small parts that can get damaged over time.
There are some problems that are common to all AO Smith water heaters. Lack of electrical power will prevent the water heater from working at all. A faulty thermostat won’t control the heating system properly to provide hot water at the right temperature. Sediment in the tank can inhibit heating element performance.
Once you've discovered what the problem is with your AO Smith water heater, getting the parts to perform some DIY repairs is simple. If you have the model number for your water heater or the specific part number, then you can type it into the search bar above. You’ll be taken to a parts listing page, which also has schematics and instruction manuals available. If you don't have the model or part number, then use the category listing above to browse according to manufacturer and product. At Sears PartsDirect, we offer parts that are guaranteed to fit your AO Smith water heater, and all purchases are backed by our return policy.