Remove the filter:

•Disconnect the electrical power to the water heater.

•Close the shutoff valves on both the hot-water and cold-water lines.

•Unlock the door by rotating the side lock counter- clockwise with a wide, slot screwdriver.

•Pop the top and bottom door pins by pushing the pins out, using a small screwdriver. Open the door.

•Open a nearby hot water faucet to depressurize the water tank.

•Drain the tank following the instructions in the “Draining The Tank” section.

•Unscrew the filter and clean by rinsing it under a faucet and scrubbing with a brush if required.

Heat

Engine

Cabinet

Water

Inlet Filter

Water Inlet

Fitting

FIGURE 38

Install the filter:

•Install the clean filter.

•Close the drain valve.

•Open the shutoff valves on both the hot-water and cold-water lines.

•Fill the tank following the instructions in the “Filling The Water Heater” section in this Manual.

•Close and lock the door.

•Reconnect the electrical power to the water heater.

•Restart the water heater following the Lighting Instructions found in the Operating Manual.

CLEANING THE HEAT ENGINE

It is imperative that the control compartment burner and circulating air passageways of the appliance is kept clean.

•Turn off and disconnect the electrical power. Allow to cool.

•Remove and clean the water inlet filter. See “Cleaning The Inlet Water Filter” section.

•Remove the front panel.

•Use a low air pressure to remove dust from the main burner, heat exchanger, and blower. Do not use a wet cloth or spray cleaners on the burners.

NOTE: Do not use volatile substances such as benzene and thinners. They may ignite or fade the paint.

FLUSHING THE HEAT EXCHANGER (LIME BUILD- UP)

The heat exchanger must be cleaned on a regular basis to reduce lime build-up. The frequency of this cleaning is dependent on the quality of your local water supply. Failure to flush the appliance will cause damage to the heat exchanger. Damage caused by lime build-up is not covered by the unit’s warranty.

•Disconnect electrical power to the water heater.

•Close the shutoff valves on both the hot water and cold water lines.

•Drain the tank using the instructions in the “Draining The Tank” section.

•Disconnect the hoses joining the tank and the heat engine (upper hose is water outlet and lower hose is water inlet).

•Connect addition length of hose (not provided) to existing hoses. (Note: The heat engine hose is a 3/4” NPT thread which is different for a garden hose thread.)

5 gallon pail of virgin, food grade, white vinegar (or virgin, food grade,

citric acid).

Hot Water

Line

Heat

Engine

Cold Water

Line

FIGURE 39

•Connect a pump to the hose running to the heat engine water inlet (lower fitting). We recommend a submersible utility pump for the circulating pump. (Note: If a submersible pump is not used, connect a hose from the circulating pump to the cleaning solution.)

•Pour approximately 4 gallons (15 litres) of virgin, food grade, white vinegar or citric acid into a 5 gallon or greater pail.

•Place the “intake” and “output” hoses into the pail of cleaning solution. If a submersible utility pump is used, place the pump into the pail of cleaning solution.

•Plug in the circulating pump.

•Connect the electrical power to the water heater and run the heat engine.

•Operate the heat engine to circulate the cleaning solution through the system for at least 45 minutes. (Note: Lower the temperature below 104°F (40°C) or to vacation mode.) Warning: Water will become hot very

quickly.

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American Water Heater 316888-004 warranty Cleaning the Heat Engine, Flushing the Heat Exchanger Lime BUILD- UP
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316888-004 specifications

The American Water Heater 316888-004 is a reliable and efficient choice for homeowners seeking a dependable and effective water heating solution. Designed with a focus on performance and convenience, this water heater provides an impressive array of features that meet the demands of modern living.

One of the standout characteristics of the 316888-004 is its efficient heating technology. The unit employs advanced heating elements that ensure rapid heating of water, reducing wait times for hot water availability. This feature is particularly beneficial for households with high hot water demands, such as those with multiple bathrooms or numerous appliances requiring hot water simultaneously. By delivering hot water quickly, this model enhances user satisfaction and improves overall household efficiency.

In terms of design, the American Water Heater 316888-004 boasts a compact structure, which makes it suitable for various installation environments, including tight spaces. Its durable construction is complemented by high-quality materials, ensuring longevity and reduced maintenance costs. This model is built to withstand the rigors of daily use, providing peace of mind to homeowners regarding its reliability and durability.

Safety is another important aspect of the 316888-004. The unit is equipped with multiple safety features, including a temperature and pressure relief valve, which helps prevent overheating and excessive pressure buildup. Additionally, it accommodates users' needs for energy efficiency, making it an environmentally friendly option. The device is designed to minimize energy consumption, which not only lowers utility bills but also contributes to reducing the household's overall carbon footprint.

Moreover, the 316888-004 is user-friendly, featuring a simple control interface that makes adjusting temperature settings easy. This accessibility allows users to customize their water heating experience according to their personal preferences.

In conclusion, the American Water Heater 316888-004 stands out as a top choice in its category. With its efficient heating technology, durable construction, focus on safety, energy efficiency, and user-friendly features, it meets the diverse needs of contemporary households. For anyone seeking a reliable, high-performance water heater, the 316888-004 is undoubtedly a smart investment, ensuring consistent hot water availability for years to come.
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