ProLine® Electric Water Heaters

 Top Service Items     •    Additional Resources   

The Residential ProLine® Commercial-Grade Electric water heater is the reliable choice when you are looking to maximize your hot water output and is designed with environmentally-friendly insulation to reduce standby heat loss. Our Commercial-Grade Electric models are built with tough Coregard® stainless-steel cored anode protection, stainless-steel heating elements, and much more.

What it means to be commercial-grade – As an industry leader in commercial water heating, A.O. Smith understands the importance of abundant and reliable hot water delivery in hospitals, hotels and restaurants. We require the same standard of durability and performance in our ProLine® residential products. There’s nothing standard about commercial-grade.

Features and Benefits

How It Works


Top Service Items

No Hot Water

Not Enough Hot Water

Checking and Replacing the Lower Heating Element

Checking the Upper Heating Element

Replacing the Lower Thermostat

Replacing the Upper Thermostat

Tripped ECO

Adjusting the Temperature

PDF – No Hot Water

PDF – Not Enough Hot Water

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